This French Onion Beef and Rice Casserole Recipe turns a handful of pantry staples into one of the coziest dinners you will make all season.
Ground beef, caramelized onions, and tender rice all bake together in a rich, savory broth until every bite tastes like French onion soup met your favorite weeknight casserole.
It is the kind of meal that fills the kitchen with an amazing smell long before it hits the table, and it uses only one skillet and one baking dish to pull off.
If you love recipes that feed a crowd without a mountain of dishes afterward, this one is going straight into your regular rotation.
| Quick Recipe Summary | |
|---|---|
| Prep Time | 20 minutes |
| Cook Time | 1 hour |
| Total Time | 1 hour 20 minutes |
| Servings | 6 servings |
| Difficulty Level | Easy |
Why You’ll Love This French Onion Beef and Rice Casserole Recipe
This casserole takes everything comforting about French onion soup and turns it into a full, filling dinner.
The rice soaks up all the beefy, oniony broth as it bakes, so every forkful is packed with flavor.
It is a true dump and bake style dinner, which means minimal hands on time for a maximum payoff at the table.
- Made with simple ingredients you can find at any grocery store
- One skillet and one baking dish keep cleanup easy
- Rice cooks right in the casserole, no separate pot needed
- Freezes and reheats beautifully for meal prep
- Easy to customize with mushrooms, different cheeses, or a crispy onion topping
- Great for busy weeknights or a low key weekend dinner
This dish shares a lot of DNA with my Chicken and Wild Rice Casserole, another one dish dinner built around rice soaking up a savory broth.
Ingredients
Every ingredient here earns its place, and most of it is likely already in your kitchen.
- 2 pounds ground beef, 85 percent lean
- 2 tablespoons unsalted butter
- 2 large yellow onions, thinly sliced
- 3 cloves garlic, minced
- 8 ounces cremini mushrooms, sliced
- 1 teaspoon fresh thyme leaves
- 1 tablespoon Worcestershire sauce
- 1 1/2 cups long grain white rice, uncooked
- 2 cans (10.5 ounces each) condensed French onion soup
- 1 can (10.5 ounces) beef consomme
- 1 cup beef broth
- Salt and black pepper, to taste
- 1 1/2 cups shredded Gruyere cheese
- 1 cup crispy French fried onions, for topping
Read Also: French Onion Soup Recipe
Kitchen Equipment Needed
Nothing fancy is required to pull this recipe together, just a few reliable basics.
- Large skillet or oven safe skillet
- 9×13 inch baking dish
- Cutting board and sharp knife
- Measuring cups and spoons
- Aluminum foil
- Box grater, if shredding your own cheese
- Wooden spoon
I also lean on this same setup for my Cowboy Casserole, which uses a nearly identical skillet to oven method.
Recommended Products for This Recipe
These are a few products I personally reach for when I make this casserole, and I think they genuinely make the process easier or the result tastier.
1. Le Creuset Enameled Cast Iron Dutch Oven
A heavy enameled Dutch oven browns the beef and caramelizes the onions evenly, then goes straight into the oven if you want to skip transferring everything to a separate baking dish.
It holds heat beautifully, so the rice cooks at a steady, even temperature.
2. Gruyere Cheese Wedge
Gruyere is what gives this casserole that unmistakable French onion soup flavor, with a nutty, slightly sweet melt that pre-shredded cheese just cannot match.
Buying a wedge and grating it yourself also melts smoother, without any of the anti-caking starch that can make packaged shreds gritty.
3. French’s Crispy Fried Onions
A generous layer of these on top adds the crunchy contrast this casserole needs after baking under foil.
They crisp back up in just the last few minutes in the oven, so you get texture in every bite.
4. Ceramic 9×13 Baking Dish
A sturdy ceramic dish holds heat well and looks good enough to bring straight to the table. It also cleans up easily, even with all that baked on cheese.
Another favorite: Beef Stroganoff Recipe
Step-by-Step Instructions: How to Make French Onion Beef and Rice Casserole
1. Preheat the Oven and Prep Your Dish
- Preheat your oven to 350 degrees Fahrenheit.
- Lightly grease a 9×13 inch baking dish with butter or nonstick spray so nothing sticks as it bakes.
- Set the dish aside while you build the beef and onion base.
2. Brown the Ground Beef
- Heat a large skillet over medium high heat.
- Add the ground beef and break it up with a wooden spoon as it cooks.
- Cook for 6 to 8 minutes, stirring occasionally, until no pink remains.
- Drain any excess grease from the skillet and season the beef lightly with salt and pepper.
- Transfer the beef to a plate and set it aside.
3. Caramelize the Onions and Mushrooms
- In the same skillet, melt the butter over medium low heat.
- Add the sliced onions and cook for 12 to 15 minutes, stirring occasionally, until they turn soft and deep golden brown.
- Add the mushrooms and cook for another 5 minutes, until they release their liquid and soften.
- Stir in the garlic and thyme and cook for 1 more minute, until fragrant.
4. Combine the Beef, Rice, and Broth
- Return the cooked ground beef to the skillet with the onions and mushrooms.
- Stir in the Worcestershire sauce, uncooked rice, both cans of French onion soup, the beef consomme, and the beef broth.
- Mix everything together until well combined, then taste and adjust the salt and pepper as needed.
5. Assemble and Bake Covered
- Pour the beef and rice mixture into the prepared baking dish and spread it into an even layer.
- Cover the dish tightly with aluminum foil so the steam stays trapped inside.
- Bake for 45 minutes, resisting the urge to lift the foil early.
6. Add the Cheese and Finish Baking
- Carefully remove the foil and check that the rice is tender. If it still has a bite, cover again and bake for another 10 minutes.
- Once the rice is tender, sprinkle the shredded Gruyere cheese evenly over the top.
- Return the dish to the oven, uncovered, for 8 to 10 minutes, until the cheese is fully melted.
7. Add the Crispy Topping and Serve
- Scatter the crispy French fried onions over the melted cheese.
- Bake for 2 to 3 more minutes, just until the onions turn golden and fragrant.
- Let the casserole rest for 5 minutes before serving so it sets slightly and is easier to scoop.
You might also enjoy: Slow Cooker French Onion Soup Recipe
Tips for The Best French Onion Beef and Rice Casserole
A few small habits make a big difference in how this casserole turns out.
- Take your time caramelizing the onions, since rushing this step means less flavor overall.
- Use long grain white rice, since instant rice or brown rice will change the cooking time and liquid needed.
- Keep the foil sealed tightly during the first bake so the rice steams properly.
- Grate your own cheese instead of using pre-shredded bags for a smoother, creamier melt.
- Let the casserole rest before serving so the liquid fully absorbs into the rice.
I used the same low and slow onion technique when developing my Tater Tot Casserole.
Serving Suggestions
This casserole is rich and savory, so it pairs best with something light and fresh alongside it.
A simple green salad or roasted vegetable is really all you need to round out the meal.
- A crisp side salad with a light vinaigrette
- Steamed green beans or roasted broccoli
- Warm crusty bread or dinner rolls for soaking up extra sauce
- A side of French Onion Beef and Noodles if you are feeding a very hungry crowd
- A light cucumber or tomato salad to balance the richness
Variations of French Onion Beef and Rice Casserole
This recipe is easy to adjust based on what you have on hand or how you like to eat.
- Swap ground beef for ground turkey or ground chicken for a leaner version.
- Use brown rice instead of white, keeping in mind it needs a longer covered baking time.
- Stir in frozen peas and carrots for extra vegetables and color.
- Try Swiss or provolone cheese instead of Gruyere for a milder flavor.
- Add a splash of dry sherry or red wine to the onions for deeper flavor.
- Make it lower carb by swapping in riced cauliflower, reducing the added liquid slightly.
Read Also: Broccoli Rice Casserole Recipe
Storage and Reheating
This casserole holds up well in the fridge and even freezes nicely for later.
- Store leftovers in an airtight container in the refrigerator for up to 4 days.
- Reheat individual portions in the microwave in 60 second bursts, stirring in between.
- To reheat a larger portion, cover with foil and warm in a 325 degree oven until heated through.
- Freeze cooled casserole in a freezer safe container for up to 3 months.
- Thaw overnight in the refrigerator before reheating for the best texture.
This is one of those recipes, much like my Beef Barley Soup Recipe, that tastes even better the next day once the flavors settle.
Nutritional Facts
These values are estimates per serving, based on 6 servings total, and will vary depending on the exact brands and cuts you use.
- Calories: approximately 520
- Protein: 32 grams
- Carbohydrates: 38 grams
- Fat: 25 grams
- Saturated Fat: 11 grams
- Fiber: 2 grams
- Sodium: 980 milligrams
For a lighter option nutritionally, my Classic Beef Chili Recipe uses similar ingredients with a bit less fat overall.
Health Benefits of Key Ingredients
Beyond being comforting, this casserole brings some genuine nutritional value to the table.
Ground beef is a strong source of protein and iron, both important for energy and muscle maintenance.
- Ground beef delivers protein, iron, and vitamin B12
- Onions contain antioxidants and compounds linked to heart health
- Mushrooms add fiber, potassium, and B vitamins with very few calories
- Garlic offers natural compounds associated with immune support
- Gruyere cheese provides calcium and additional protein
Read Also: Chicken and Rice Casserole Recipe
FAQs About French Onion Beef and Rice Casserole
1. Can I use instant rice instead of regular long grain rice?
Instant rice cooks much faster than regular long grain rice, so it will turn mushy if baked for the full 45 minutes.
If you want to use instant rice, reduce the covered baking time to about 20 minutes and check it early.
2. Can I make this casserole ahead of time?
You can brown the beef and caramelize the onions a day ahead and store them in the fridge.
Combine everything with the raw rice just before baking, since rice can turn gummy if it sits too long in the liquid.
3. What can I use instead of French onion soup if I cannot find it?
A packet of French onion soup mix combined with extra beef broth works as a solid substitute.
You can also make a quick homemade version using extra caramelized onions and beef broth in place of the canned soup.
4. Why is my casserole watery after baking?
This usually means the foil was not sealed tightly enough, letting too much steam escape during baking.
Letting the casserole rest for 5 to 10 minutes after baking also helps the rice absorb any remaining liquid.
5. Can I freeze this casserole after it is baked?
Yes, this casserole freezes well once it has cooled completely to room temperature.
Store it in a freezer safe container for up to 3 months and thaw overnight in the fridge before reheating.
Read Also: Crockpot Chicken and Rice Recipe
French Onion Beef and Rice Casserole
Ingredients
- 2 pounds ground beef 907g, 85% lean
- 2 tablespoons unsalted butter 28g
- 2 large yellow onions about 2 cups or 300g, thinly sliced
- 3 cloves garlic minced
- 8 ounces cremini mushrooms 227g, sliced
- 1 teaspoon fresh thyme leaves or 1/2 teaspoon dried thyme
- 1 tablespoon Worcestershire sauce 15ml
- 1 1/2 cups long grain white rice uncooked
- 2 cans condensed French onion soup 10.5 ounces / 298g each
- 1 can beef consomme 10.5 ounces / 298g
- 1 cup beef broth 240ml
- salt and black pepper to taste
- 1 1/2 cups shredded Gruyere cheese about 170g, freshly grated
- 1 cup crispy French fried onions for topping
Equipment
- Large skillet or oven safe skillet
- 9×13-inch baking dish Ceramic recommended for even heat distribution
- Cutting board
- Sharp knife
- Measuring cups and spoons
- Aluminum foil
- Box grater For shredding cheese from a wedge
- Wooden spoon
Method
- Preheat oven to 350°F (175°C). Lightly grease a 9×13 inch baking dish with butter or nonstick spray. Set aside.
- Heat a large skillet over medium-high heat. Add ground beef, breaking it up with a wooden spoon. Cook for 6-8 minutes until no longer pink. Drain excess grease, season with salt and pepper, and transfer beef to a plate.
- In the same skillet, melt butter over medium-low heat. Add sliced onions and cook for 12-15 minutes, stirring occasionally, until soft and deep golden brown. Add mushrooms and cook for 5 more minutes until softened. Stir in garlic and thyme and cook for 1 minute until fragrant.
- Return cooked ground beef to the skillet. Stir in Worcestershire sauce, uncooked rice, both cans of French onion soup, beef consomme, and beef broth. Mix until well combined. Taste and adjust salt and pepper as needed.
- Pour the beef and rice mixture into the prepared baking dish and spread into an even layer. Cover tightly with aluminum foil. Bake for 45 minutes without lifting the foil.
- Remove foil and check if rice is tender. If still firm, cover and bake for another 10 minutes. Once rice is tender, sprinkle shredded Gruyere cheese evenly over the top. Return to oven, uncovered, for 8-10 minutes until cheese is fully melted.
- Scatter crispy French fried onions over the melted cheese. Bake for 2-3 more minutes until onions are golden and fragrant. Let casserole rest for 5 minutes before serving.
Nutrition
Notes
- Caramelize slowly: Take your time caramelizing the onions – rushing this step results in less flavor development.
- Rice matters: Use long grain white rice only. Instant rice will become mushy, and brown rice requires a longer baking time and more liquid.
- Seal tight: Keep the foil tightly sealed during the first bake so the rice steams properly and absorbs all the liquid.
- Grate your own cheese: Pre-shredded cheese contains anti-caking agents that prevent smooth melting. A wedge of Gruyere grated fresh melts much creamier.
- Make ahead: Brown the beef and caramelize the onions a day in advance and store in the refrigerator. Combine with the rice just before baking.
- Swap the protein: Ground turkey or ground chicken work well as a leaner alternative to beef.
- Add veggies: Stir in a cup of frozen peas and carrots or chopped spinach for extra color and nutrition.
- Cheese alternatives: Swiss or provolone cheese can replace Gruyere for a milder flavor profile.
- Lower carb option: Swap the rice for riced cauliflower, reducing the added liquid slightly to prevent a watery casserole.
- Storage: Store leftovers in an airtight container in the refrigerator for up to 4 days, or freeze for up to 3 months.
Private Notes
Tried this recipe?
Let us know how it was!Conclusion
This French Onion Beef and Rice Casserole is proof that a handful of humble ingredients can turn into something really special.
It is warm, savory, and cheesy in all the right ways, and it comes together with very little fuss.
I hope this becomes one of those recipes you return to again and again on busy weeknights.
If you give it a try, I would love to hear how it turned out. Drop a comment below or share a photo, and let me know what variations you tried.
Recommended:
- French Onion Beef Short Rib Soup Recipe
- Vegetarian French Onion Soup Recipe
- French Onion Soup Mix Recipe
- Slow Cooker Beef Stroganoff Recipe
- Beef Stew Recipe
