French Onion Ground Beef and Rice Casserole

Why You’ll Love This Recipe

This French Onion Ground Beef and Rice Casserole combines the rich, savory flavors of caramelized onions, hearty ground beef, and fluffy rice in a creamy, cheesy bake. The crispy onion topping adds a delightful crunch, making this dish both comforting and satisfying. It’s an easy, one-pan meal that’s great for busy weeknights, potlucks, or meal prep.

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Ingredients

• 1 lb ground beef
• 1 medium onion, finely chopped
• 1 can (10.5 oz) condensed French onion soup
• 1 can (10.5 oz) condensed cream of mushroom soup
• 1 cup beef broth
• 1 cup long-grain white rice (uncooked)
• 1 cup shredded cheddar cheese
• 1/2 cup sour cream
• 1 teaspoon garlic powder
• 1/2 teaspoon black pepper
• 1/2 teaspoon salt (optional)
• 1/2 teaspoon dried thyme (optional)
• 1 cup crispy fried onions (such as French’s)

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Instructions

Step 1: Preheat the Oven

Preheat your oven to 350°F (175°C) and lightly grease a 9×13-inch baking dish.

Step 2: Cook the Ground Beef

In a large skillet over medium heat, cook the ground beef and chopped onion until the beef is browned and the onion is tender (about 5–7 minutes). Drain excess grease.

Step 3: Combine Ingredients

In a large mixing bowl, combine the cooked beef and onions with:

• French onion soup
• Cream of mushroom soup
• Beef broth
• Uncooked rice
• Garlic powder, black pepper, and dried thyme (if using)

Mix everything well and pour the mixture into the prepared baking dish.

Step 4: Bake the Casserole

Cover the dish tightly with aluminum foil and bake for 40–45 minutes, or until the rice is fully cooked and tender.

Step 5: Add Cheese and Crispy Onions

Remove the foil and stir in sour cream and shredded cheddar cheese. Sprinkle the crispy fried onions on top.

Step 6: Bake Until Golden

Return the casserole to the oven, uncovered, for an additional 10–15 minutes, or until the cheese is melted and the onions are golden brown.

Step 7: Serve and Enjoy

Let the casserole rest for about 5 minutes before serving. Enjoy warm!

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Variations

• Swap the Protein: Use ground turkey, chicken, or even sausage for a different flavor.
• Add Vegetables: Stir in mushrooms, bell peppers, or green beans for added nutrition.
• Make It Spicy: Add a dash of cayenne pepper or red pepper flakes for a kick.
• Cheese Options: Try Swiss, mozzarella, or Gruyère for a richer, more gourmet taste.
• Low-Carb Version: Replace the rice with cauliflower rice (reduce the liquid slightly).

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Servings & Timing

• Servings: 6
• Prep Time: 10 minutes
• Cook Time: 55–60 minutes
• Total Time: About 1 hour 10 minutes

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Storage & Reheating

Refrigerator

Store leftovers in an airtight container in the fridge for up to 3 days.

Freezer

For longer storage, freeze in a sealed container for up to 2 months. Thaw overnight in the fridge before reheating.

Reheating

• Oven: Bake at 350°F (175°C) for 15–20 minutes, covered with foil.
• Microwave: Heat individual portions on medium power for 1–2 minutes, stirring halfway through.

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Frequently Asked Questions

How can I make this casserole creamier?

For extra creaminess, add an additional 1/2 cup of sour cream or stir in 4 oz of cream cheese before baking.

Can I use instant rice instead of long-grain rice?

Yes, but adjust the liquid amount and reduce the baking time by about 15 minutes since instant rice cooks faster.

What can I use instead of crispy fried onions?

Try buttered breadcrumbs, crushed Ritz crackers, or Parmesan cheese for a different topping.

Can I make this casserole ahead of time?

Absolutely! Assemble it up to 24 hours in advance, cover, and refrigerate. Add 10 extra minutes to the baking time.

What side dishes go well with this casserole?

This dish pairs well with steamed vegetables, garlic bread, or a fresh green salad.

Is this recipe gluten-free?

Not as written—most canned soups contain gluten. Use gluten-free cream of mushroom soup and French onion soup for a GF version.

How do I prevent the rice from being undercooked?

Make sure to cover the casserole tightly with foil to trap steam. If the rice is still undercooked, add a splash of broth and bake for another 10 minutes.

Can I use brown rice instead of white rice?

Yes, but increase the baking time by 15–20 minutes and add an extra 1/2 cup of broth.

What’s the best cheese for this recipe?

Cheddar is a classic choice, but Swiss, Gruyère, or Monterey Jack work well too.

Can I make this in a slow cooker?

Yes! Cook on low for 4–5 hours or high for 2–3 hours, then add the cheese and crispy onions before serving.

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Conclusion

This French Onion Ground Beef and Rice Casserole is the perfect balance of rich, savory flavors and comforting textures. It’s easy to make, customizable, and a great meal prep option. Whether you’re cooking for a busy weeknight or feeding a crowd, this casserole is sure to become a family favorite. Enjoy!

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