If you crave a hearty meal that feels like a big warm hug, this French Onion Ground Beef and Rice Casserole is the answer. Imagine all the savory charm of classic French onion soup, blended with juicy ground beef, tender rice, and gooey melted cheese, then baked to golden perfection. It’s weeknight-friendly, made with simple ingredients you probably already have, and trust me, your whole kitchen will smell absolutely irresistible. One bite and you’ll see why this cheesy casserole is about to become your go-to comfort food favorite.
Ingredients You’ll Need
Every ingredient in this French Onion Ground Beef and Rice Casserole plays a starring role. They’re easy to find and work together to create ultimate flavor, the perfect texture, and that signature cozy appeal we all love in casseroles.
- Olive oil: Adds a rich base and helps soften the onions to release their sweetness.
- Ground beef: Brings hearty, savory flavor and protein for a satisfying main dish.
- Yellow onion: The foundation of that signature French onion flavor; dice it small for even flavor distribution.
- Garlic: Gives a subtle, aromatic kick that deepens the overall taste.
- Condensed French onion soup: Shortcut to deep, slow-simmered onion flavor without all the work!
- Sour cream: Makes the casserole ultra creamy and adds a gentle tangy balance.
- Mozzarella cheese: Melts beautifully for stretchy, cheesy goodness in every bite.
- Cheddar cheese: Adds a punch of flavor and a golden color to the melt.
- Cooked white rice: Soaks up all the savory juices, making each bite tender and comforting.
- Salt: Enhances all the other flavors without overpowering.
- Black pepper: Offers a subtle heat and sharpness that balances the creamy, savory base.
- Dried thyme: Lends a subtle herbal note that nods to classic French onion soup.
- Crushed French fried onions: The crunchy, savory topping that makes this casserole so special.
How to Make French Onion Ground Beef and Rice Casserole
Step 1: Sauté the Onions
Start by preheating your oven to 350°F (175°C) and preparing your baking dish with a light coating of nonstick spray or olive oil. In a large skillet over medium heat, warm your olive oil, then toss in the diced onions. Sauté for 4–5 minutes, stirring occasionally, until the onions soften and become fragrant. This step is key for building that sweet, mellow onion base that gives French Onion Ground Beef and Rice Casserole its signature taste.
Step 2: Brown the Beef and Garlic
Next, add the minced garlic and ground beef to the skillet with the softened onions. As you cook, break the beef apart with a spoon so it browns evenly. You want the beef fully cooked and crumbly, with no pink spots remaining. Once browned, take a moment to drain off any excess grease to keep the casserole perfectly balanced, not greasy.
Step 3: Mix in the Creamy and Savory Elements
It’s time for the fun part! Stir in the condensed French onion soup, sour cream, shredded mozzarella, cheddar cheese, and the cooked rice. Sprinkle in the salt, black pepper, and dried thyme. This blend transforms the mixture into a creamy, dreamy, cheesy delight that forms the core of your French Onion Ground Beef and Rice Casserole. Make sure everything is well combined before moving to the next step.
Step 4: Assemble and Bake
Transfer the mixture to your greased 9×13-inch baking dish, smoothing it out into an even layer. Bake uncovered in the preheated oven for about 25–30 minutes, until the casserole is bubbling and the cheese on top begins to lightly brown.
Step 5: Top and Finish Baking
Carefully remove the casserole from the oven and sprinkle the crushed French fried onions generously over the top. Pop the dish back into the oven for another 5 minutes, just until the onions turn golden and crisp up. Let your casserole rest for 5 minutes before serving—this seals in all the flavors and makes slicing a breeze.
How to Serve French Onion Ground Beef and Rice Casserole
Garnishes
This casserole is already packed with flavor, but a sprinkle of fresh chopped parsley or thyme brightens up the dish and adds a lovely pop of color. If you want an extra cheesy hit, add a small additional handful of shredded cheddar on top just before serving—it’ll melt gently from the residual heat.
Side Dishes
The rich, savory layers of French Onion Ground Beef and Rice Casserole pair beautifully with simple sides. I love serving it with a crisp green salad tossed with a light vinaigrette, or some steamed green beans or broccoli. A loaf of crusty bread is perfect for mopping up every last creamy, cheesy bite.
Creative Ways to Present
To impress at a potluck or family gathering, try dividing the casserole into individual ramekins before baking for personalized servings. You can also top each portion with a little more French fried onions and a parmesan crisp for an elegant touch. Or, turn leftovers into lunch by scooping a portion into a wrap or pita for an on-the-go comfort food sandwich.
Make Ahead and Storage
Storing Leftovers
Store leftover French Onion Ground Beef and Rice Casserole in an airtight container in the refrigerator for up to four days. The flavors only meld more deliciously overnight, making it a perfect meal prep contender.
Freezing
This casserole freezes exceptionally well. Once cooled, transfer portions to freezer-safe containers or wrap tightly with foil, then freeze for up to three months. For maximum freshness, hold off on adding the French fried onions topping until reheating so they don’t lose their crunch.
Reheating
To reheat, simply place your casserole in a preheated oven at 350°F (175°C) until heated through—usually about 20–25 minutes from chilled, or longer if frozen. You can also microwave individual servings for 2–3 minutes, covering loosely to avoid splatters. If you reserved the fried onion topping, sprinkle it on before the last few minutes in the oven so it stays extra crispy.
FAQs
Can I use ground turkey or chicken instead of beef?
Absolutely! Ground turkey or chicken work wonderfully in French Onion Ground Beef and Rice Casserole, giving a slightly lighter twist while keeping all the flavor and texture. Just cook it as you would the beef, and you’re set.
What’s the best way to make this gluten free?
To make this casserole gluten-free, be sure your condensed French onion soup and French fried onions are certified gluten-free. Everything else in the recipe is naturally gluten-free, so a couple of swaps make it perfect for those avoiding gluten.
Can I use brown rice or a different type Main Course
Brown rice, jasmine, or even a wild rice blend can all work in French Onion Ground Beef and Rice Casserole. Just make sure your rice is fully cooked and a bit tender before mixing it in, as firmer rice can hold up to all the creamy goodness.
Can I prep French Onion Ground Beef and Rice Casserole ahead of time?
Yes! Assemble the casserole up to the point of baking, cover, and store in the fridge for up to 24 hours. When you’re ready, bake as directed and add the French fried onion topping at the end for crunch.
Is there a way to add more veggies?
Go for it! Diced bell peppers, mushrooms, or even spinach are tasty additions. Sauté extra veggies with the onion at the beginning so they release their moisture and blend seamlessly into the casserole.
Final Thoughts
I can’t wait for you to dig into a big comforting helping of French Onion Ground Beef and Rice Casserole! It’s the kind of dish that wraps you up in warmth and fills the whole house with the most mouthwatering aroma. Whether it’s a busy weeknight or a relaxed family dinner, this casserole always delivers in both flavor and coziness. Give it a try—you might just discover your new favorite comfort food classic!
Print
French Onion Ground Beef and Rice Casserole Recipe
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Total Time: 50 minutes
- Yield: 6 servings
- Category: Main Course
- Method: Baking
- Cuisine: American
- Diet: Non-Vegetarian
Description
This French Onion Ground Beef and Rice Casserole is a comforting and hearty dish that combines the flavors of French onion soup with cheesy goodness. Perfect for a family dinner or meal prep, this easy-to-make casserole is sure to be a hit.
Ingredients
For the Casserole:
- 1 tablespoon olive oil
- 1 pound ground beef
- 1 medium yellow onion, diced
- 2 cloves garlic, minced
- 1 can (10.5 ounces) condensed French onion soup
- 1 cup sour cream
- 1 cup shredded mozzarella cheese
- 1 cup shredded cheddar cheese
- 3 cups cooked white rice
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
- 1/4 teaspoon dried thyme
- 1/2 cup crushed French fried onions (for topping)
Instructions
- Preheat the oven: Preheat the oven to 350°F (175°C) and lightly grease a 9×13-inch baking dish.
- Cook the beef mixture: In a large skillet, heat olive oil. Cook onion until soft, then add garlic and ground beef. Cook until browned, drain excess grease.
- Combine ingredients: Stir in French onion soup, sour cream, cheeses, cooked rice, salt, pepper, and thyme. Mix well.
- Bake: Pour mixture into baking dish and bake uncovered for 25–30 minutes until hot. Top with crushed fried onions and bake for 5 more minutes until golden.
- Serve: Let rest for 5 minutes before serving.
Notes
- You can use ground turkey or chicken instead of beef.
- For a deeper onion flavor, caramelize the onions before adding garlic and beef.
- This casserole is great for meal prep and freezes well.
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