French Onion Ground Beef and Rice Casserole

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If you’re craving something cozy, cheesy, and full of nostalgic flavor, French Onion Ground Beef and Rice Casserole delivers every time. This hearty dish layers savory ground beef with caramelized onion goodness, fluffy rice, and melty cheese in one comforting bake that’s perfect for busy weeknights. Each spoonful wraps you in rich, savory flavors that feel like a warm hug from the inside out.

Inspired by classic French onion soup, this casserole combines that irresistible onion depth with creamy textures and beefy satisfaction. It’s the kind of recipe that brings the whole family to the table, from picky eaters to serious food lovers. Whether you make it as a make-ahead dinner or a crowd-pleasing potluck option, it’s guaranteed to disappear fast.

Why You’ll Love This French Onion Ground Beef and Rice Casserole

This casserole brings together the magic of French onion flavor and the comforting bulk of beef and rice in a single dish. It’s budget-friendly, deeply flavorful, and doesn’t require any fancy ingredients. Plus, it reheats beautifully, making it ideal for meal prep. From the sweet onions to the gooey melted cheese on top, every bite is layered with comfort.

Can I Use Different Types of Ground Meat in This Casserole?

Absolutely! While ground beef is the classic base here, you can easily substitute it with ground turkey, chicken, or even plant-based meat alternatives. Each will slightly shift the flavor, but the real star—those caramelized onions—keeps the dish grounded in deliciousness no matter what protein you choose.

Ingredients for the French Onion Ground Beef and Rice Casserole

The beauty of this casserole is in its simplicity. The ingredients are pantry staples and everyday basics, yet they come together into something deeply satisfying. Here’s what you’ll need:

• Ground beef
• Yellow onions
• White rice
• Beef broth
• Worcestershire sauce
• Garlic powder
• Salt and pepper
• Shredded mozzarella cheese
• Butter

Each ingredient adds its own magic. Ground beef creates a rich base, while yellow onions (caramelized to golden perfection) bring in that French onion flavor. White rice soaks up the savory juices, making every bite creamy and flavorful. Beef broth and Worcestershire sauce deepen the umami taste, and garlic powder, salt, and pepper keep everything balanced. A final sprinkle of shredded mozzarella cheese melts into a golden blanket over the top, and butter enhances the richness during the onion cooking process.

How To Make the French Onion Ground Beef and Rice Casserole

Step 1: Caramelize the Onions

Start by thinly slicing your yellow onions and cooking them in a skillet with butter over medium-low heat. Stir occasionally and let them slowly turn golden brown, about 25-30 minutes. This step brings out their natural sweetness.

Step 2: Brown the Ground Beef

In a separate large skillet, cook the ground beef until no longer pink. Drain any excess fat, then season with garlic powder, salt, and pepper. Stir in the Worcestershire sauce for a savory kick.

Step 3: Cook the Rice

While the onions caramelize and the beef cooks, make your white rice using beef broth instead of water. This infuses every grain with flavor.

Step 4: Combine and Layer

Preheat your oven to 350°F (175°C). In a large mixing bowl or casserole dish, combine the cooked beef, caramelized onions, and cooked rice. Mix gently until everything is evenly distributed.

Step 5: Add Cheese and Bake

Sprinkle shredded mozzarella cheese over the top of the casserole. Cover with foil and bake for 15 minutes, then uncover and bake for another 10 minutes until the cheese is bubbly and slightly golden.

Step 6: Let It Rest

Let the casserole rest for about 5 minutes after taking it out of the oven. This helps the layers settle and makes serving easier.

How to Serve and Store This Casserole

This French Onion Ground Beef and Rice Casserole is hearty enough to stand on its own, but you can also serve it with a crisp green salad or some crusty bread for a full meal. It feeds about 6 people generously, making it great for family dinners or small gatherings.

To store leftovers, let the casserole cool completely and then transfer to an airtight container. Refrigerate for up to 4 days. You can reheat individual portions in the microwave, or warm the whole casserole in the oven at 325°F until heated through. This dish also freezes well—wrap tightly and freeze for up to 2 months.

What to Serve With French Onion Ground Beef and Rice Casserole?

Simple Green Salad

A light and fresh salad with a vinaigrette balances out the richness of the casserole.

Garlic Bread

The crispy, buttery texture is perfect for scooping up the saucy rice and beef.

Roasted Green Beans

A crisp, roasted veggie side keeps the meal feeling wholesome.

Sautéed Mushrooms

The earthy flavor of mushrooms pairs beautifully with the French onion base.

Apple Cider Slaw

Sweet and tangy slaw adds a refreshing crunch and contrast.

Steamed Broccoli

Simple and clean, this green veggie is always a hit on the side.

Creamed Spinach

If you want to double down on comfort, go for a warm, creamy veggie pairing.

Fresh Tomato Slices

Bright, juicy tomato with a sprinkle of salt can really cut through the richness.

Want More Casserole Ideas?

If you love this French Onion Ground Beef and Rice Casserole, you might also enjoy diving into these flavorful and filling options from Luna Meals:

• Try the Low Carb Chicken Casserole for a lighter spin that doesn’t sacrifice creamy comfort.
• The Amish Sunday Savior Casserole is a hearty and nostalgic favorite perfect for weekends.
• For breakfast vibes, don’t miss the Gooey Cinnamon Roll French Toast Casserole with its decadent twist.
• Get creative with Garlic Butter Chicken Balls with Creamy Parmesan Pasta — not quite a casserole, but close in spirit.
• You’ll also enjoy our Slow Cooker Lipton Onion Potatoes for an easy, savory side that channels similar flavor notes.

Save This Recipe For Later

📌 Save this recipe to your Pinterest dinner board so it’s always a click away when comfort food cravings hit.

I’d love to know how you made it your own. Did you add mushrooms or use a different cheese on top? Did you make it ahead for the week? Share your twists and questions in the comments—let’s help each other make dinner even better.

Explore more down-to-earth, crave-worthy meals and cozy bakes over at Luna Meals on Pinterest and spark inspiration for your next family-favorite dish.

Conclusion

French Onion Ground Beef and Rice Casserole is everything you want in a cozy dish: warm, filling, savory, and made with simple ingredients. It’s proof that a few pantry staples can turn into something truly special when you give them the time and love they deserve. Whether it’s a weeknight dinner or a weekend treat, this recipe is one to keep in your rotation.

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