If you’ve been looking for a foolproof Chicken Spaghetti that the whole family will devour, this is the one you’ve been waiting for.
It’s creamy, cheesy, packed with tender shredded chicken, and comes together with pantry staples you probably already have on hand.
This is the kind of dish that shows up at potlucks and disappears in minutes.
It’s warm, satisfying, and deeply comforting in the way only a good casserole-style pasta dish can be.
Chicken Spaghetti has deep roots in Southern cooking.
It typically features spaghetti noodles tossed with shredded chicken in a creamy, cheesy sauce made with cream of mushroom soup, Rotel tomatoes with green chiles, and a generous amount of cheddar cheese, then baked until bubbly.
It’s the ultimate crowd-pleasing dinner.
You can make this ahead, freeze it, and it reheats beautifully, making it a true weeknight hero.
If you love cozy pasta dishes, you might also enjoy my Baked Feta Pasta for another easy oven-baked dinner option.
| Quick Recipe Summary | |
|---|---|
| Prep Time | 20 minutes |
| Cook Time | 35 minutes |
| Total Time | 55 minutes |
| Servings | 6–8 servings |
| Difficulty Level | Easy |
Why You’ll Love This Chicken Spaghetti
This recipe checks every box: it’s easy enough for a busy weeknight, impressive enough for a dinner party, and comforting enough to cure any rough day.
The combination of creamy soup, tangy Rotel tomatoes, and melted cheddar creates a sauce that clings to every strand of spaghetti.
- Feeds a crowd: This recipe easily serves 6 to 8 people, making it ideal for family dinners or gatherings.
- Uses simple ingredients: Most of what you need is already in your pantry or fridge.
- Make-ahead friendly: Assemble the day before and bake when ready, it’s a meal-prepper’s dream.
- Freezer approved: Freeze in individual portions for easy meals throughout the month.
- Kid approved: The creamy, cheesy sauce is mild and universally loved by little ones and adults alike.
- Customizable: Easily adapted for spicier, lighter, or vegetarian variations.
Read Also: Chicken Bacon Ranch Casserole
Ingredients
Here’s everything you need to make this classic Southern-style Chicken Spaghetti.
Use good-quality shredded chicken for the best results, rotisserie chicken works wonderfully and cuts down on prep time significantly.
- 12 oz spaghetti
- 3 cups cooked, shredded chicken (rotisserie or poached)
- 1 can (10.5 oz) cream of mushroom soup
- 1 can (10 oz) Rotel diced tomatoes with green chiles (undrained)
- 1 cup sour cream
- 1/2 cup chicken broth
- 1 medium onion, finely diced
- 1 green bell pepper, finely diced
- 2 cloves garlic, minced
- 2 tablespoons butter
- 1 teaspoon seasoned salt
- 1/2 teaspoon black pepper
- 1/2 teaspoon garlic powder
- 2 cups shredded sharp cheddar cheese, divided
- 1/2 cup shredded Velveeta or processed cheese (optional, for extra creaminess)
You might also enjoy stirring in a handful of sliced mushrooms for extra depth, the same earthy flavor that makes my Vegan Mushroom Stroganoff so satisfying works beautifully in this dish too.
Kitchen Equipment Needed
You don’t need anything fancy for this recipe. A large pot, a skillet, and a baking dish are really all it takes to pull this together.
- Large pot (for boiling spaghetti)
- Large skillet or sauté pan
- 9×13 inch baking dish
- Colander (for draining pasta)
- Wooden spoon or silicone spatula
- Sharp knife and cutting board
- Box grater (if grating cheese from a block)
- Measuring cups and spoons
- Aluminum foil
Read Also: Million Dollar Chicken Casserole
Recommended Products for This Recipe
These are a few products I personally reach for when making Chicken Spaghetti, they genuinely make a difference in the final dish.
1. Ceramic 9×13 Baking Dish
A good ceramic or enameled baking dish distributes heat evenly so your Chicken Spaghetti bakes uniformly without dry edges or an undercooked center.
It also goes straight from oven to table beautifully. This is one kitchen investment that pays off every single time you bake.
2. Rotel Original Diced Tomatoes and Green Chiles
Rotel is the not-so-secret ingredient that gives authentic Southern Chicken Spaghetti its signature tangy kick.
Using the original variety strikes the perfect balance between mild heat and bright tomato flavor without overpowering the creamy sauce.
3. Pre-Shredded Rotisserie Chicken (Store Brand)
Skipping the step of cooking and shredding your own chicken saves at least 20 minutes and doesn’t sacrifice any flavor.
A good rotisserie chicken is already seasoned and juicy, making it an easy shortcut that keeps this dish in the “weeknight dinner” category.
4. Box Grater with Multiple Sides
Pre-shredded cheese is coated with anti-caking agents that prevent it from melting as smoothly.
Grating your own cheddar from a block makes for an ultra-creamy, gooey sauce every time. A sturdy four-sided box grater makes this quick and easy.
Step-by-Step Instructions: How to Make Chicken Spaghetti
1. Preheat the Oven and Prep Your Baking Dish
- Preheat your oven to 350°F (175°C). Give it at least 10–15 minutes to fully come to temperature before you put the casserole in.
- Spray your 9×13 inch baking dish generously with nonstick cooking spray, or rub it lightly with butter. This prevents any cheese or sauce from sticking to the sides.
- Set the prepared baking dish aside while you work on the rest of the recipe.
2. Cook the Spaghetti
- Fill a large pot with water and bring it to a rolling boil over high heat. Add a generous pinch of salt to the water, this is your only chance to season the pasta itself.
- Add 12 oz of spaghetti and cook it for 1 to 2 minutes less than the package instructs. You want the pasta to be just under al dente (slightly firm in the center) because it will continue cooking in the oven.
- Reserve about 1/2 cup of the pasta cooking water before draining, this starchy water can help loosen the sauce later if needed.
- Drain the spaghetti through a colander, then set it aside. Do not rinse it; the starch on the surface helps the sauce adhere.
3. Sauté the Vegetables
- Place your large skillet over medium heat and add 2 tablespoons of butter. Let the butter melt completely and start to foam before adding the vegetables.
- Add the finely diced onion and green bell pepper to the skillet. Cook, stirring occasionally, for about 4 to 5 minutes until the onion becomes translucent and the pepper softens.
- Add the minced garlic and stir it in. Cook for another 30 to 60 seconds, just until the garlic is fragrant. Be careful not to let it burn, as burnt garlic will make the whole dish taste bitter.
- Remove the skillet from heat and let the vegetables rest while you prepare the sauce mixture.
4. Mix the Sauce
- In a large mixing bowl (big enough to eventually hold all the spaghetti), combine the cream of mushroom soup, the entire undrained can of Rotel diced tomatoes with green chiles, and the sour cream. Stir until smooth.
- Pour in the 1/2 cup of chicken broth and stir again. The broth helps loosen the soup and creates a pourable, velvety sauce consistency.
- Add the seasoned salt, black pepper, and garlic powder. Stir well to distribute the seasoning evenly throughout the sauce.
- Fold in the sautéed onion, bell pepper, and garlic from the skillet, scraping in any buttery juices from the pan.
- Add the 3 cups of shredded chicken and stir to combine. Make sure the chicken is evenly coated in the sauce mixture.
- If using Velveeta or processed cheese for extra creaminess, dice it into small cubes and stir it into the warm sauce now. The residual warmth from the vegetables and broth will help soften it slightly.
- Finally, stir in 1 cup of the shredded cheddar cheese (reserve the remaining 1 cup for the topping). Mix until it begins to melt into the sauce.
5. Combine the Pasta and Sauce
- Add the drained, slightly undercooked spaghetti to the large bowl with the sauce mixture.
- Using tongs or two large forks, toss and fold the spaghetti into the sauce until every strand is well coated. Take your time here, you want the sauce to be evenly distributed throughout, not pooling at the bottom.
- If the mixture looks too thick or the spaghetti seems dry, add a splash of the reserved pasta cooking water and toss again to loosen it up.
6. Transfer to the Baking Dish and Top with Cheese
- Pour the entire spaghetti and sauce mixture into your prepared 9×13 inch baking dish. Use a spatula or the back of a spoon to spread it into an even layer.
- Sprinkle the remaining 1 cup of shredded cheddar cheese evenly across the top. Make sure the cheese covers the pasta all the way to the edges so you get that gorgeous golden crust everywhere.
7. Bake the Chicken Spaghetti
- Cover the baking dish tightly with aluminum foil. Covering it initially traps the steam and heat, which helps the casserole cook through evenly and keeps it from drying out.
- Bake covered at 350°F for 20 minutes.
- After 20 minutes, carefully remove the foil. The dish will be very hot and steamy, so peel back the foil slowly and away from you to avoid burning yourself.
- Return the dish to the oven, uncovered, and bake for an additional 10 to 15 minutes, or until the cheese on top is fully melted, bubbly, and beginning to turn golden brown at the edges.
- Remove from the oven and let the casserole rest for 5 minutes before serving. This brief rest allows the sauce to settle slightly and makes it much easier to scoop and serve without the casserole falling apart on the plate.
You might also love the way this bake compares to my Chicken Broccoli Casserole, another creamy, cheesy family dinner that follows a very similar technique.
Tips for The Best Chicken Spaghetti
A few small adjustments can take your Chicken Spaghetti from good to absolutely unforgettable. Here are the tricks that make the biggest difference.
- Undercook the pasta: Always cook your spaghetti 1 to 2 minutes short of al dente. The noodles will finish cooking in the oven, and if they’re already fully cooked going in, they’ll turn mushy by the time you serve.
- Grate your own cheese: Pre-shredded cheese contains anti-caking additives that prevent smooth melting. A freshly grated block of sharp cheddar creates a creamier, more cohesive sauce.
- Don’t drain the Rotel: The liquid from the canned tomatoes adds flavor and helps create the right sauce consistency. Pour it all in.
- Use rotisserie chicken: It’s already cooked, seasoned, and easy to shred. It saves time and adds great flavor that plain poached chicken sometimes lacks.
- Rest before serving: Give the casserole at least 5 minutes out of the oven before you serve it. This helps the sauce firm up slightly so it scoops cleanly.
- Add a breadcrumb topping: For a crunchy finish, mix 1/4 cup of panko breadcrumbs with a tablespoon of melted butter and sprinkle over the cheese before the final uncovered bake.
Another fantastic tip: Crockpot Chicken and Rice uses similar shredded chicken, so if you batch-cook chicken in the slow cooker, you’ll have plenty of shredded chicken ready for both recipes.
Serving Suggestions
Chicken Spaghetti is hearty enough to stand on its own, but a few simple sides round out the meal beautifully and balance the richness of the creamy sauce.
- Garden salad: A crisp, lightly dressed green salad cuts through the richness of the casserole. Try a simple vinaigrette with romaine, cucumber, and cherry tomatoes.
- Garlic bread or dinner rolls: Serve alongside Buttery Dinner Rolls to soak up every last bit of that creamy sauce.
- Roasted vegetables: Roasted Brussels Sprouts add a lovely caramelized contrast to the creamy pasta.
- Steamed broccoli: Simple steamed broccoli with a little lemon juice is a classic pairing that adds color and nutrition to the plate.
- Corn: A side of Creamed Corn is a Southern staple that complements Chicken Spaghetti perfectly.
- Coleslaw: A tangy, creamy coleslaw provides a refreshing contrast to the warm, rich casserole.
Variations of Chicken Spaghetti
Once you’ve mastered the classic version, it’s easy to put your own spin on this dish. Here are some popular variations to keep things interesting.
- Spicy version: Use hot Rotel instead of original, add a pinch of cayenne, and use pepper jack cheese in place of half the cheddar for a dish with real kick.
- Velveeta Chicken Spaghetti: Replace the shredded cheddar entirely with cubed Velveeta for an ultra-smooth, extra-creamy sauce that’s especially popular at potlucks.
- Cream of chicken soup swap: Substitute cream of chicken soup for the cream of mushroom if you prefer a slightly lighter, less earthy flavor profile.
- Add vegetables: Stir in frozen peas, diced jalapeños, sliced mushrooms, or baby spinach to the sauce mixture for added nutrition and color.
- Gluten-free version: Use your favorite gluten-free spaghetti and gluten-free condensed soups to make this dish accessible for everyone at the table.
- Turkey Spaghetti: Swap in shredded leftover turkey, especially great after Thanksgiving, and use cream of celery soup for a seasonal twist.
Read Also: Tuna Noodle Casserole
Storage and Reheating
One of the best things about Chicken Spaghetti is how well it keeps, making it ideal for meal prep or planned leftovers throughout the week.
- Refrigerator: Store cooled leftovers in an airtight container or cover the baking dish tightly with plastic wrap or foil. It keeps well in the fridge for up to 4 days.
- Freezer: Assemble the casserole fully but don’t bake it. Cover tightly with two layers of plastic wrap and then a layer of foil. Freeze for up to 3 months. Thaw overnight in the refrigerator before baking.
- Reheating from the fridge: Cover the dish with foil and reheat in a 325°F oven for 20 to 25 minutes until warmed through. Add a splash of chicken broth before reheating to loosen the sauce.
- Reheating individual portions: Microwave single servings in a microwave-safe bowl, covered loosely with a damp paper towel, for 2 to 3 minutes, stirring halfway through.
- Reviving leftover sauce consistency: If the pasta absorbs too much sauce upon sitting, stir in a tablespoon of chicken broth or sour cream before reheating to restore creaminess.
You might also find my Winter Casserole Recipes roundup helpful, it’s packed with make-ahead, freezer-friendly bakes perfect for busy weeknights.
Nutritional Facts
The following values are estimates per serving, based on 8 servings per recipe. Actual values will vary depending on the specific brands and ingredient quantities used.
| Nutrient | Per Serving (approx.) |
|---|---|
| Calories | ~480 kcal |
| Protein | ~30g |
| Carbohydrates | ~42g |
| Fat | ~18g |
| Saturated Fat | ~9g |
| Fiber | ~2g |
| Sodium | ~780mg |
| Calcium | ~230mg |
Health Benefits of Key Ingredients
While Chicken Spaghetti is definitely comfort food, several of its key ingredients bring real nutritional value to the table alongside all that cheesy goodness.
- Chicken: An excellent source of lean protein, which supports muscle repair, immune function, and keeps you feeling full longer. A 3.5 oz serving provides over 25 grams of protein.
- Tomatoes (Rotel): Tomatoes are rich in lycopene, a powerful antioxidant linked to reduced risk of certain chronic diseases. They also provide vitamin C and potassium.
- Garlic: Garlic contains allicin, a compound with documented anti-inflammatory and antimicrobial properties. It’s been used in traditional medicine for centuries and adds flavor with almost no calories.
- Bell pepper: Green bell peppers are packed with vitamin C, sometimes more per ounce than citrus fruits as well as vitamin B6 and folate.
- Onion: Onions contain quercetin and other antioxidants that support heart health and immune response. They also add sweetness and depth without adding many calories.
- Cheddar cheese: While higher in fat, cheddar provides a meaningful amount of calcium and phosphorus, both essential for bone health and density.
For another protein-rich pasta dinner with big flavor, check out my Marry Me Shrimp Pasta.
FAQs About Chicken Spaghetti
1. Can I make Chicken Spaghetti ahead of time?
Absolutely, this is actually one of the best make-ahead casseroles you can prepare.
Assemble the dish completely, cover it tightly, and refrigerate for up to 24 hours before baking.
Add 10 extra minutes to the covered baking time if cooking straight from the fridge.
2. Can I freeze Chicken Spaghetti?
Yes, Chicken Spaghetti freezes very well before or after baking.
For best texture, freeze it unbaked: cover tightly with plastic wrap and foil and freeze for up to 3 months. Thaw overnight in the refrigerator and bake as directed.
3. What can I substitute for cream of mushroom soup?
Cream of chicken soup is the most popular swap and gives a slightly milder, less earthy flavor.
You can also use cream of celery soup, or make a homemade white sauce with butter, flour, chicken broth, and cream as a from-scratch alternative.
4. Do I have to use Rotel tomatoes?
Rotel is classic for this dish, but you can substitute a can of regular diced tomatoes plus a small can of mild diced green chiles if you can’t find Rotel.
If you want a completely plain version without any tomato, you can omit them altogether and add a bit more broth to keep the sauce loose enough.
5. Can I use a different type of pasta?
Spaghetti is traditional, but this recipe is quite flexible when it comes to pasta shape.
Linguine, angel hair, or even rotini or penne all work well, just adjust the cook time to match the package instructions for whichever pasta you choose, and remember to undercook it slightly before baking.
Easy Chicken Spaghetti
Ingredients
- 12 oz spaghetti 340g; break in half if desired for easier mixing
- 3 cups cooked shredded chicken about 420g; rotisserie chicken works great
- 1 can (10.5 oz) cream of mushroom soup 298g; do not dilute
- 1 can (10 oz) Rotel diced tomatoes with green chiles 283g; undrained; use original or hot variety
- 1 cup sour cream 240g; full-fat recommended for creamiest result
- 1/2 cup chicken broth 120ml; low-sodium preferred
- 1 medium yellow onion about 1 cup or 150g; finely diced
- 1 green bell pepper about 3/4 cup or 90g; finely diced
- 2 cloves garlic minced; about 1 teaspoon
- 2 tablespoons butter 30g; unsalted or salted both work
- 1 teaspoon seasoned salt such as Lawry’s; adjust to taste
- 1/2 teaspoon black pepper freshly ground preferred
- 1/2 teaspoon garlic powder
- 2 cups shredded sharp cheddar cheese about 225g; divided — 1 cup for sauce, 1 cup for topping; grate from block for best melt
- 1/2 cup Velveeta or processed cheese about 115g; cubed; optional — adds extra creaminess
Equipment
- Large pot For boiling spaghetti
- Large skillet or sauté pan For sautéing vegetables
- 9×13-inch baking dish Ceramic or glass recommended for even heat distribution
- Colander For draining pasta
- Wooden spoon or silicone spatula For stirring and folding
- Sharp knife and cutting board For dicing vegetables
- Box grater For grating cheese from a block; optional if using pre-shredded
- Measuring cups and spoons
- Aluminum foil For covering the dish during initial bake
- Large mixing bowl For combining sauce and pasta
Method
- Preheat your oven to 350°F (175°C). Grease a 9×13 inch baking dish with nonstick spray or butter and set aside.
- Bring a large pot of salted water to a boil, then cook the spaghetti 1–2 minutes less than the package directions (it will finish in the oven). Reserve ½ cup of pasta water, then drain without rinsing.
- Melt the butter in a large skillet over medium heat, then add the diced onion and bell pepper and cook for 4–5 minutes until softened. Stir in the minced garlic and cook 30–60 seconds until fragrant, then remove from heat.
- In a large mixing bowl, stir together the cream of mushroom soup, undrained Rotel, sour cream, chicken broth, seasoned salt, black pepper, and garlic powder until smooth. Fold in the sautéed vegetables, shredded chicken, Velveeta (if using), and 1 cup of the cheddar cheese.
- Add the drained spaghetti to the sauce mixture and toss with tongs until every strand is evenly coated. Add a splash of the reserved pasta water if the mixture seems too thick.
- Transfer the spaghetti mixture to the prepared baking dish and spread into an even layer. Sprinkle the remaining 1 cup of shredded cheddar cheese evenly over the top.
- Cover the dish tightly with aluminum foil and bake at 350°F for 20 minutes to heat through evenly.
- Carefully remove the foil and bake uncovered for an additional 10–15 minutes until the cheese is melted, bubbly, and golden at the edges. Let the casserole rest for 5 minutes before serving.
Nutrition
Notes
- Undercook the pasta: Always cook spaghetti 1–2 minutes less than al dente before baking — it will finish cooking in the oven and prevents mushy noodles.
- Grate your own cheese: Pre-shredded cheese contains anti-caking additives that reduce meltability. Grating from a block gives you a creamier, smoother sauce.
- Don’t drain the Rotel: The liquid from the canned tomatoes adds both flavor and the right sauce consistency — pour the whole can in.
- Soup swap: Cream of chicken soup is the most popular substitute for cream of mushroom and gives a milder, less earthy flavor. Cream of celery also works well.
- Make-ahead: Assemble fully, cover tightly, and refrigerate up to 24 hours before baking. Add 10 extra minutes to the covered bake time when cooking straight from the fridge.
- Freezer instructions: Freeze unbaked for up to 3 months, tightly wrapped in plastic wrap and foil. Thaw overnight in the refrigerator before baking as directed.
- Reheating leftovers: Cover with foil and reheat in a 325°F oven for 20–25 minutes, adding a splash of chicken broth to restore creaminess. Single portions reheat well in the microwave in 2–3 minutes.
- Spicy version: Use hot Rotel, add a pinch of cayenne, and swap half the cheddar for pepper jack cheese for a dish with real heat.
- Add a crunchy topping: Mix ¼ cup panko breadcrumbs with 1 tablespoon melted butter and sprinkle over the cheese before the final uncovered bake for a golden, crispy crust.
- Rotisserie chicken shortcut: A store-bought rotisserie chicken yields about 3 cups of shredded meat and cuts prep time significantly while adding great seasoned flavor.
Private Notes
Tried this recipe?
Let us know how it was!Conclusion
Chicken Spaghetti is one of those recipes that proves the best food doesn’t have to be complicated.
With a handful of pantry staples, shredded chicken, and about an hour of your time, you can have a bubbling, golden casserole on the table that tastes like it took all day.
It’s the kind of dish that becomes a family tradition, the one people request by name at gatherings and potlucks.
I hope this Chicken Spaghetti earns a permanent spot on your dinner rotation. Give it a try this week and I promise your family will be asking for seconds.
I’d love to hear how it turned out for you. Drop a comment below and let me know if you made any variations, and don’t forget to share this recipe with anyone who loves a good, old-fashioned comfort meal.
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