If you’re craving a dish that brings the whole family to the table, this Southern Chicken Spaghetti Casserole is it.
This classic comfort food combines tender chicken, perfectly cooked spaghetti, and a rich, creamy cheese sauce that’s hard to resist.
I grew up eating this casserole at church potlucks and Sunday dinners, and it never failed to disappear within minutes.
The secret is in the combination of cream of mushroom soup, sharp cheddar cheese, and that signature ingredient, Rotel tomatoes with green chilies, which gives it just the right amount of tang and subtle heat.
This is one of those recipes that gets requested over and over again. It’s easy to throw together, feeds a crowd, and tastes even better as leftovers.
| Quick Recipe Summary | |
|---|---|
| Prep Time | 20 minutes |
| Cook Time | 45 minutes |
| Total Time | 1 hour 5 minutes |
| Servings | 8-10 servings |
| Difficulty Level | Easy |
Why You’ll Love This Southern Chicken Spaghetti Casserole
This casserole hits every comfort food note you could ask for.
It’s creamy without being heavy, cheesy without being overwhelming, and has just enough spice to keep things interesting.
The spaghetti soaks up all the flavors from the chicken broth and the creamy sauce, making every bite satisfying.
One of the best things about this dish is how forgiving it is. You can prep it ahead, freeze it for later, or bake it right away when you need dinner fast.
It also makes excellent leftovers that reheat beautifully, which is a huge win for busy weeknights.
Here’s what makes this recipe stand out:
- Incredibly creamy and cheesy with a perfect blend of sharp cheddar and cream of mushroom soup
- Budget-friendly ingredients that don’t sacrifice flavor
- Make-ahead friendly so you can prep when it’s convenient
- Feeds a crowd making it perfect for potlucks and family gatherings
- Freezer-friendly for easy meal planning
- Minimal prep time with straightforward steps
If you enjoy hearty casseroles, you might also like my Chicken Bacon Ranch Casserole.
Ingredients
This recipe uses simple, pantry-friendly ingredients that come together to create something truly special.
You’ll need a good mix of proteins, vegetables, and cheese to achieve that classic Southern chicken spaghetti flavor.
Here’s what you’ll need:
For the Chicken:
- 3 cups cooked, shredded chicken (about 1½ pounds boneless chicken breasts or thighs, or 1 rotisserie chicken)
- 4 cups chicken broth (for cooking the chicken and spaghetti)
- Salt and pepper to taste
For the Casserole:
- 12 ounces spaghetti pasta, broken into thirds
- 1 can (10.5 ounces) cream of mushroom soup
- 1 can (10 ounces) Rotel diced tomatoes and green chilies, drained
- 8 ounces Velveeta cheese, cubed
- 8 ounces cream cheese, softened and cubed
- 3 cups shredded sharp cheddar cheese, divided
- 1 medium onion, diced
- 1 bell pepper (red or green), diced
- 2 cloves garlic, minced
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- ½ teaspoon cayenne pepper (optional, for extra heat)
- 1 teaspoon seasoned salt
- ½ teaspoon black pepper
- 2 tablespoons butter
Kitchen Equipment Needed
Having the right equipment makes this recipe come together smoothly. You won’t need anything fancy, just some basic kitchen essentials that you probably already have.
Here’s what you’ll need:
- Large pot for boiling chicken and cooking spaghetti
- 9×13-inch baking dish (ceramic or glass)
- Large mixing bowl
- Cutting board and sharp knife
- Measuring cups and spoons
- Wooden spoon or spatula
- Colander for draining pasta
- Aluminum foil for covering the casserole
Recommended Products for This Recipe
After making this casserole countless times, I’ve found a few products that really make a difference in the final result.
These are my tried-and-true recommendations that’ll help you get the best possible dish.
1. Le Creuset Stoneware 9×13 Baking Dish
This baking dish is a game-changer for casseroles. It heats evenly, which means no cold spots or overcooked edges, and the stoneware keeps your casserole warm at the table.
The non-porous glaze ensures that flavors don’t transfer between dishes, and it cleans up beautifully.
2. Better Than Bouillon Chicken Base
I use this chicken base to make the most flavorful chicken broth for cooking both the chicken and the spaghetti.
It’s more concentrated than regular broth, so the pasta absorbs incredible flavor as it cooks. One jar lasts forever and tastes so much better than boxed broth.
3. Tillamook Sharp Cheddar Cheese Block
Freshly shredded cheese melts so much better than pre-shredded varieties, which often contain anti-caking agents.
This sharp cheddar has the perfect tang and melts into a creamy, smooth sauce. Shredding your own cheese takes an extra minute but makes a noticeable difference.
4. Rotel Original Diced Tomatoes and Green Chilies
This is the ingredient that gives Southern chicken spaghetti its signature flavor.
The Original Rotel has just the right amount of heat without being overwhelming.
Stock up when you see it on sale because you’ll want to make this casserole again and again.
Step-by-Step Instructions: How to Make Southern Chicken Spaghetti Casserole
This casserole comes together in straightforward steps. I’ll walk you through each part so you can create this delicious dish with confidence, even if you’re new to casserole cooking.
1. Cook and Shred the Chicken
- Place the chicken breasts or thighs in a large pot and cover with 4 cups of chicken broth.
- Season the chicken with salt and pepper.
- Bring the broth to a boil over high heat, then reduce the heat to medium-low.
- Simmer the chicken for 25-30 minutes until it reaches an internal temperature of 165°F and is cooked through.
- Remove the chicken from the pot and set it aside to cool, reserving the broth for cooking the spaghetti.
- Once the chicken is cool enough to handle, shred it into bite-sized pieces using two forks or your hands.
- You should have about 3 cups of shredded chicken.
2. Cook the Spaghetti
- Bring the reserved chicken broth back to a boil in the same pot (this adds incredible flavor to the pasta).
- Break the spaghetti into thirds for easier eating and serving.
- Add the broken spaghetti to the boiling broth.
- Cook the spaghetti until just al dente, about 8-9 minutes (it will cook more in the oven, so don’t overcook it now).
- Drain the spaghetti in a colander and set aside.
- Reserve 1 cup of the cooking broth in case you need to thin the sauce later.
3. Sauté the Vegetables
- In the same pot (or a large skillet), melt the butter over medium heat.
- Add the diced onion and bell pepper to the melted butter.
- Sauté the vegetables for 5-7 minutes until they’re softened and the onion is translucent.
- Add the minced garlic and cook for another 1-2 minutes until fragrant.
- Season with garlic powder, onion powder, seasoned salt, black pepper, and cayenne pepper if using.
- Stir well to coat the vegetables in the seasonings.
4. Make the Creamy Cheese Sauce
- Reduce the heat to low and add the cream of mushroom soup to the vegetables.
- Stir in the drained Rotel tomatoes.
- Add the cubed Velveeta cheese and cream cheese to the pot.
- Stir continuously until both cheeses are completely melted and the mixture is smooth and creamy (this takes about 5-7 minutes).
- If the sauce seems too thick, add some of the reserved chicken broth, ¼ cup at a time, until you reach your desired consistency.
- Stir in 2 cups of the shredded sharp cheddar cheese, reserving 1 cup for topping.
- Continue stirring until the cheddar is melted and fully incorporated into the sauce.
5. Combine All the Ingredients
- Add the shredded chicken to the cheese sauce and stir to combine.
- Add the cooked spaghetti to the pot with the chicken and sauce.
- Gently toss everything together using tongs or a large spoon until the spaghetti is evenly coated with the creamy sauce.
- Make sure every strand of pasta is covered and the chicken is distributed throughout.
- Taste and adjust seasonings if needed, adding more salt, pepper, or cayenne to your preference.
6. Assemble and Bake the Casserole
- Preheat your oven to 350°F.
- Grease a 9×13-inch baking dish with butter or non-stick cooking spray.
- Transfer the spaghetti mixture into the prepared baking dish, spreading it out evenly.
- Sprinkle the remaining 1 cup of shredded sharp cheddar cheese evenly over the top of the casserole.
- Cover the baking dish tightly with aluminum foil.
- Bake covered for 30 minutes to heat everything through.
- Remove the foil and bake for an additional 15 minutes, or until the cheese on top is melted, bubbly, and starting to turn golden brown.
- If you want a more browned top, turn on the broiler for 2-3 minutes at the end, watching carefully to prevent burning.
- Let the casserole rest for 5-10 minutes before serving to allow the sauce to set slightly.
Another comforting dinner option is my Chicken Broccoli Casserole.
Tips for The Best Southern Chicken Spaghetti Casserole
These tips will help you avoid common pitfalls and ensure your casserole turns out perfectly every time.
I’ve learned these through years of making this dish for my family and friends.
Here’s what makes the difference:
- Don’t overcook the pasta – Cook it just until al dente since it will continue cooking in the oven. Mushy pasta is one of the most common mistakes.
- Use freshly shredded cheese – Pre-shredded cheese contains anti-caking agents that prevent it from melting smoothly. Shred your own for the creamiest sauce.
- Cook the chicken in broth – This adds tremendous flavor to both the chicken and the pasta. Don’t skip this step and just boil in water.
- Let the casserole rest – Allowing it to sit for 5-10 minutes after baking helps the sauce thicken and makes serving much easier.
- Adjust the spice level – If you’re sensitive to heat, use mild Rotel and skip the cayenne. For more kick, use hot Rotel and increase the cayenne to ¾ teaspoon.
- Make sure cheeses are softened – Take the cream cheese out of the fridge 30 minutes before cooking so it melts smoothly into the sauce without lumps.
- Season generously – Casseroles need more seasoning than you might think. Taste the mixture before baking and adjust salt and pepper as needed.
- Reserve some broth – Keep that chicken cooking liquid on hand to thin the sauce if it gets too thick.
Serving Suggestions
This casserole is hearty enough to serve as a complete meal, but a few simple sides can round out your dinner beautifully.
Southern cooking is all about balance, so pair this rich, creamy dish with something fresh or crisp.
Here are my favorite ways to serve it:
Fresh Salads: A simple green salad with a tangy vinaigrette cuts through the richness perfectly. You could also try Dense Bean Salad for a protein-packed side.
Bread Options: Warm, buttery garlic bread or Buttermilk Cornbread is perfect for soaking up any extra sauce on your plate.
Vegetable Sides: Roasted green beans, steamed broccoli, or sautéed asparagus add color and nutrition to your plate.
Complete the Meal: For a true Southern spread, serve alongside coleslaw or pickled vegetables for a nice acidic contrast to the creamy casserole.
Variations of Southern Chicken Spaghetti Casserole
This recipe is incredibly versatile and adapts well to different tastes and dietary needs. Feel free to make it your own by trying one of these popular variations.
Here are some ideas to switch things up:
- Vegetable-Loaded Version РAdd saut̩ed mushrooms, diced celery, or frozen peas and carrots to boost the veggie content.
- Spicy Kick РUse hot Rotel instead of original, add diced jalape̱os, or increase the cayenne pepper for more heat.
- Tex-Mex Twist – Add taco seasoning, black beans, and corn, then top with crushed tortilla chips before baking.
- Lighter Version – Use low-fat cream cheese, reduced-fat cheddar, and cream of chicken soup made with milk instead of full-fat versions.
- Turkey Swap – Substitute shredded turkey for chicken, making this perfect for using up Thanksgiving leftovers.
- Protein Boost – Add cooked, crumbled bacon or diced ham for extra flavor and protein.
- Different Pasta – Swap spaghetti for penne, rotini, or egg noodles if that’s what you have on hand.
- Crunchy Topping – Mix crushed Ritz crackers with melted butter and sprinkle on top before the final 15 minutes of baking for added texture.
You might also enjoy my Taco Casserole for another family-friendly baked dinner.
Storage and Reheating
One of the best things about this casserole is how well it stores and reheats.
Leftovers taste just as good as the first serving, making this perfect for meal prep or enjoying throughout the week.
Here’s how to handle storage:
Refrigerator Storage:
- Let the casserole cool completely before covering.
- Store in an airtight container or cover the baking dish tightly with plastic wrap or aluminum foil.
- Keeps well in the refrigerator for up to 4 days.
Freezing Instructions:
- This casserole freezes beautifully either before or after baking.
- To freeze before baking: Assemble the casserole completely, cover tightly with plastic wrap and then aluminum foil, and freeze for up to 3 months.
- To freeze after baking: Let cool completely, portion into serving sizes if desired, wrap tightly, and freeze for up to 3 months.
- Thaw overnight in the refrigerator before reheating.
Reheating Tips:
- For oven reheating: Cover with foil and bake at 350°F for 20-25 minutes if refrigerated, or 45-60 minutes if frozen, until heated through.
- For microwave: Heat individual portions on high for 2-3 minutes, stirring halfway through.
- Add a splash of milk or broth when reheating to restore creaminess if the sauce has thickened.
- Let frozen casserole sit at room temperature for 30 minutes before baking to prevent the dish from cracking due to temperature shock.
Nutritional Facts
Per serving (based on 10 servings):
- Calories: 485
- Total Fat: 24g
- Saturated Fat: 13g
- Cholesterol: 95mg
- Sodium: 890mg
- Total Carbohydrates: 35g
- Dietary Fiber: 2g
- Sugars: 5g
- Protein: 32g
- Calcium: 285mg
- Iron: 2mg
Note: Nutritional information is approximate and will vary based on specific ingredients and portion sizes used.
Health Benefits of Key Ingredients
While this is definitely a comfort food indulgence, several ingredients in this casserole offer nutritional benefits.
Enjoying dishes like this as part of a balanced diet can absolutely fit into a healthy lifestyle.
Here’s what’s good for you:
Chicken Chicken is an excellent source of lean protein, which helps build and repair muscle tissue.
It’s also rich in B vitamins, particularly niacin and B6, which support energy metabolism and brain health.
Bell Peppers These colorful vegetables are packed with vitamin C, even more than oranges.
They also contain antioxidants like beta-carotene and vitamin A, which support immune function and eye health.
Onions and Garlic Both onions and garlic contain compounds with anti-inflammatory and immune-boosting properties.
Garlic is particularly known for its cardiovascular benefits and potential to support healthy blood pressure.
Tomatoes (in Rotel) Tomatoes are rich in lycopene, a powerful antioxidant linked to reduced risk of certain cancers and heart disease. They also provide vitamin C and potassium.
Cheddar Cheese While high in fat and calories, cheddar cheese provides calcium for strong bones and teeth, along with protein and vitamin B12.
Moderation is key, but it does offer nutritional value beyond just great flavor.
For a lighter pasta option, you might like my Baked Feta Pasta.
FAQs About Southern Chicken Spaghetti Casserole
1. Can I make this casserole ahead of time?
Absolutely! This is one of the best make-ahead casseroles you can prepare.
Assemble the entire casserole, cover it tightly, and refrigerate for up to 2 days before baking.
When you’re ready to bake, let it sit at room temperature for 30 minutes, then follow the baking instructions, adding an extra 10-15 minutes to the covered baking time if it’s still cold from the fridge.
2. Can I substitute the Velveeta cheese with something else?
You can, but the texture will be different. Velveeta creates that signature creamy, smooth sauce that many people love in this dish.
If you prefer to avoid processed cheese, you can use an additional 8 ounces of cream cheese plus ½ cup of whole milk to achieve a similar creaminess.
Some people also use a combination of mozzarella and American cheese as a substitute.
3. What’s the best way to shred the chicken?
The easiest method is to use two forks to pull the chicken apart while it’s still warm but cool enough to handle.
You can also use your hands to shred it, which gives you more control over the size of the pieces.
For a quicker option, use a stand mixer with the paddle attachment on low speed for about 30 seconds. This works great but can sometimes shred the chicken too finely.
4. Can I use a different type of pasta?
Yes, you can swap the spaghetti for other pasta shapes. Penne, rotini, bow ties, or even egg noodles work well in this recipe.
Just keep in mind that different pasta shapes may require slight adjustments to cooking time. Always cook the pasta to just al dente since it will continue cooking in the oven.
5. How do I know when the casserole is done baking?
The casserole is ready when it’s bubbling around the edges and the cheese on top is melted and starting to turn golden.
The internal temperature should reach 165°F when measured with a meat thermometer inserted in the center.
If the top is browning too quickly before the casserole is heated through, cover it with foil and continue baking until done.
Read Also: Million Dollar Chicken Casserole
Southern Chicken Spaghetti Casserole
Ingredients
- 1 pound spaghetti 454g
- 3 cups cooked chicken about 450g, shredded or diced
- 1 can cream of chicken soup 10.5 oz or 298g
- 1 can cream of mushroom soup 10.5 oz or 298g
- 1 can Rotel tomatoes with green chilies 10 oz or 283g, undrained
- 1 cup sour cream 240g
- 2 cups shredded cheddar cheese 240g, divided
- 1 cup shredded mozzarella cheese 120g
- 1 medium yellow onion about 1 cup or 150g, diced
- 1 medium green bell pepper about 1 cup or 150g, diced
- 2 cloves garlic minced
- 2 tablespoons butter 28g
- 1 teaspoon salt or to taste
- 1/2 teaspoon black pepper
- 1/2 teaspoon garlic powder
- 1/2 teaspoon onion powder
- 1 cup shredded cheddar cheese 120g, reserved from above
- 1/2 cup crushed Ritz crackers optional, about 12 crackers
Equipment
- Large pot For boiling pasta
- 9×13-inch baking dish For casserole
- Large mixing bowl
- Medium saucepan For cheese sauce
Method
- Preheat oven to 350°F (175°C) and grease a 9×13 inch baking dish with cooking spray or butter.
- Cook spaghetti according to package directions until al dente, drain well, and set aside.
- In a large skillet, melt butter over medium heat and sauté onion and bell pepper until softened, about 5 minutes. Add garlic and cook for 1 minute more.
- In a large mixing bowl, combine cream of chicken soup, cream of mushroom soup, Rotel tomatoes, sour cream, 1 cup cheddar cheese, mozzarella cheese, salt, pepper, garlic powder, and onion powder.
- Add cooked pasta, shredded chicken, and sautéed vegetables to the sauce mixture and stir until everything is evenly coated.
- Transfer mixture to prepared baking dish and spread evenly. Top with remaining 1 cup cheddar cheese and crushed Ritz crackers if using.
- Bake uncovered for 30-35 minutes until bubbly and cheese is melted and golden. Let stand 5 minutes before serving.
Nutrition
Notes
- Use rotisserie chicken for quick preparation, or poach chicken breasts in seasoned water for 15-20 minutes.
- For a spicier version, use hot Rotel tomatoes or add 1/4 teaspoon cayenne pepper to the sauce.
- This casserole can be assembled up to 24 hours ahead, covered, and refrigerated. Add 10 minutes to baking time if baking from cold.
- Leftovers keep well in the refrigerator for 3-4 days and can be reheated in the microwave or oven.
- Freeze unbaked casserole for up to 3 months. Thaw overnight in refrigerator before baking.
- Substitute Greek yogurt for sour cream for a lighter version with more protein.
- Add 1 cup frozen peas or corn in step 5 for extra vegetables.
- For gluten-free, use gluten-free pasta and check that your cream soups are certified gluten-free.
- The Ritz cracker topping adds buttery crunch but can be omitted or replaced with breadcrumbs.
- If mixture seems dry, add 1/4 to 1/2 cup chicken broth or milk to reach desired consistency.
Private Notes
Tried this recipe?
Let us know how it was!Conclusion
This Southern Chicken Spaghetti Casserole is the kind of recipe that becomes a family tradition. It’s comforting, satisfying, and brings people together around the table.
I hope you’ll give it a try and experience that same warmth and deliciousness that I’ve enjoyed over the years.
It’s perfect for Sunday dinners, potlucks, or any night when you need something hearty and delicious without spending hours in the kitchen.
Let me know how it turns out for you in the comments below, and don’t hesitate to share any variations you come up with.
Recommended:
- Chicken Pot Pie Casserole
- Ritz Cracker Chicken Casserole
- Mexican Chicken Casserole
- Teriyaki Chicken Casserole
- Stuffed Pepper Casserole
