French Onion Ground Beef and Rice Casserole

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This French Onion Ground Beef and Rice Casserole is the kind of comforting dish that feels like a warm hug after a long day. It takes all the savory richness of French onion soup and marries it with hearty ground beef and tender rice for a meal that’s cozy, simple, and packed with flavor.

Imagine caramelized onions, rich beefy flavor, and creamy textures baked together in one dish that fills your kitchen with a smell so good it’ll draw everyone to the table. Whether it’s a busy weeknight or you just want a dish that soothes the soul, this casserole delivers big on taste with minimal effort.

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

You’ll love how this casserole is a fuss-free dish that doesn’t skimp on flavor. The ingredients are pantry staples, and it’s versatile enough to feed a family or store for later. Plus, that cheesy top layer and beefy onion base? Pure comfort in every bite.

This recipe is also ideal for make-ahead meals, potlucks, or even meal prepping your week’s dinners. It holds up beautifully when reheated and somehow gets better the next day.

What Kind of Onion Soup Should I Use?

A good French onion soup base makes all the difference here. You can use a canned condensed French onion soup, or go with a high-quality boxed version if you have it on hand. Just avoid overly watery versions, as the casserole needs that robust flavor and thickness to bind with the rice and beef. If you’re feeling adventurous, homemade onion soup is a fantastic option too.

Ingredients for the French Onion Ground Beef and Rice Casserole

What makes this casserole extra special is the combination of simple ingredients that work magic together. Each one plays a key role in building layers of flavor and texture. Here’s what you’ll need:

• Ground beef
• Yellow onions
• French onion soup
• Beef broth
• Long grain white rice
• Butter
• Shredded mozzarella cheese
• Shredded Swiss or Gruyere cheese
• Garlic powder
• Salt and pepper

How To Make the French Onion Ground Beef and Rice Casserole

Step 1: Brown the Beef

In a large skillet, cook the ground beef over medium heat until fully browned. Drain off any excess grease and season with garlic powder, salt, and pepper.

Step 2: Cook the Onions

In the same skillet, melt the butter and add sliced yellow onions. Cook until deeply caramelized, about 15-20 minutes, stirring occasionally.

Step 3: Combine Ingredients

Stir in the French onion soup and beef broth. Add uncooked rice and bring the mixture to a simmer. Let it cook for 5 minutes to allow the rice to start absorbing the flavors.

Step 4: Assemble the Casserole

Transfer the mixture to a greased 9×13-inch baking dish. Cover tightly with foil and bake at 375°F (190°C) for 45 minutes.

Step 5: Add the Cheese

Remove the foil and sprinkle both mozzarella and Swiss or Gruyere cheese over the top. Bake uncovered for an additional 10-15 minutes, until the cheese is melted and bubbly.

Step 6: Let it Rest

Allow the casserole to sit for 5 minutes before serving to let everything settle and become even more flavorful.

How to Serve and Store French Onion Ground Beef and Rice Casserole

This casserole is best served hot out of the oven when the cheese is still melty and golden. It makes a hearty dinner that easily serves 6 to 8 people. Add a side salad or some steamed veggies, and you’ve got a full meal that satisfies.

For storing, let the casserole cool completely before transferring it to an airtight container. It will keep well in the refrigerator for up to 4 days. You can also freeze it in individual portions for convenient reheating. Just pop it in the microwave or warm it in the oven until heated through.

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

Fresh Green Salad

A simple mixed greens salad with a tangy vinaigrette helps balance the richness of the casserole.

Roasted Vegetables

Carrots, Brussels sprouts, or asparagus roasted with a bit of olive oil and sea salt make a great side.

Garlic Bread

The crispy, buttery texture of garlic bread pairs wonderfully with the creamy casserole.

Sautéed Mushrooms

Adding extra umami with sautéed mushrooms can elevate your meal to a whole new level.

Pickled Vegetables

A bright, acidic bite from pickled beets or cucumbers cuts through the richness beautifully.

Creamed Spinach

If you’re going for ultimate comfort, creamy spinach rounds it out nicely.

Tomato Basil Soup

A warm bowl of tomato soup on the side complements the French onion flavors in a subtle, cozy way.

Cornbread Muffins

If you’re feeding a crowd, these are perfect for soaking up every last bit of flavor on the plate.

Want More Casserole Ideas?

If this French Onion Ground Beef and Rice Casserole became your new go-to dinner, here are some other cozy dishes you might fall in love with:

• Try the Easy Brunch Casserole for a savory breakfast twist that’s perfect any time of day.
• Love beef and pasta? The Cheesy Beef Enchilada Tortellini brings bold flavor to your table.
• Don’t miss Chicken and Dressing Casserole for a down-home, Southern-style meal.
• For something a little creamy and indulgent, the Creamy Chicken and Broccoli is always a winner.
• Or switch up the protein with Sausage and Spinach Frittata that’s equally satisfying.

Save This Recipe For Later

📌 Save this recipe to your Pinterest casserole board so you can come back to it any time.

And let me know in the comments how yours turned out. Did you try a different cheese blend? Did you add mushrooms or use brown rice?

I love hearing how others make these recipes their own. Questions are welcome too—let’s help each other cook smarter.

Explore beautifully curated weeknight dinners and home-cooked favorites on Zoe Recipes on Pinterest and discover something delicious to make next.

Conclusion

The French Onion Ground Beef and Rice Casserole isn’t just easy and filling, it’s the kind of recipe that brings people back to the table for seconds. With its savory, cheesy, and comforting layers, it’s sure to become a repeat request in your kitchen. Simple to make, rich in flavor, and endlessly versatile—this one’s a keeper.

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