French Onion Ground Beef and Rice Casserole

This French Onion Ground Beef and Rice Casserole brings together the rich, savory flavors of French onion soup with hearty ground beef and tender rice in a comforting, easy-to-make dish. Perfect for family dinners or meal prepping, this casserole layers a delicious blend of caramelized onions, garlic, mushrooms, and aromatic herbs with a creamy, cheesy topping that bakes into golden perfection. The addition of dry sherry and balsamic red wine vinegar adds depth and brightness to balance the richness, while beef broth infuses the rice with savory goodness.

Ideal for those who love classic French onion flavors but want a more substantial meal, this casserole is a one-pot wonder that requires minimal fuss. It combines textures and flavors—creamy, tender, cheesy, and savory—into one satisfying dish. Whether served straight from the oven on a chilly evening or packed for lunches, it delivers both comfort and gourmet appeal in every bite.

Why You’ll Love This Recipe

1. Rich French Onion Flavor: Uses onion soup mix, caramelized onions, and sherry to create a classic, savory taste.
2. Hearty and Filling: Combines ground beef and rice for a satisfying, complete meal.
3. Creamy and Cheesy: The sour cream and shredded cheese topping make it irresistibly creamy and golden.
4. Simple One-Dish Meal: Easy to prepare with minimal cleanup and great for busy nights.
5. Customizable: Use your favorite cheese or add extra vegetables to suit your taste.

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Ingredients

• Ground beef (96% lean/4% fat)
• Ground black pepper
• Italian herbs
• Thyme
• Unsalted butter
• Onion soup mix (one pouch)
• Garlic (clove)
• Large Vidalia onion (sliced)
• Beef broth
• Dry sherry wine
• White long grain rice
• Sliced mushrooms
• Whole milk
• Sour cream
• Shredded cheese (your favorite type)
• Balsamic red wine vinegar

Variations

• Use Different Cheese: Cheddar, mozzarella, Gruyere, or a cheese blend works well.
• Add More Veggies: Spinach, bell peppers, or peas can be added for extra nutrition.
• Make it Spicier: Add crushed red pepper flakes or a dash of cayenne.
• Use Ground Turkey or Chicken: For a leaner protein option.
• Substitute Wine: Replace sherry with dry white wine or extra beef broth.

How to Make French Onion Ground Beef and Rice Casserole

Step 1: Cook the Ground Beef

In a large skillet over medium heat, cook ground beef with black pepper, Italian herbs, and thyme until browned. Drain excess fat and set beef aside.

Step 2: Sauté Onions and Mushrooms

In the same skillet, melt butter. Add sliced Vidalia onion and cook over medium-low heat until caramelized, about 15-20 minutes. Add garlic and mushrooms and sauté until mushrooms soften.

Step 3: Add Soup Mix and Liquids

Stir in the onion soup mix, beef broth, and dry sherry wine. Bring to a simmer.

Step 4: Combine with Rice and Beef

Add uncooked white long grain rice and browned ground beef to the skillet. Stir to combine, cover, and simmer gently until rice is partially cooked and liquid is mostly absorbed (about 10-12 minutes).

Step 5: Prepare Creamy Mixture

In a bowl, whisk together whole milk, sour cream, and balsamic red wine vinegar.

Step 6: Assemble Casserole

Transfer beef and rice mixture to a baking dish. Pour the creamy mixture evenly over the top. Sprinkle shredded cheese generously.

Step 7: Bake

Bake in a preheated oven at 350°F (175°C) for 25-30 minutes, or until the cheese is melted, bubbly, and golden brown.

Step 8: Serve

Let the casserole rest for 5 minutes before serving to allow it to set.

Tips for Making the Recipe

• Use white long grain rice for best texture and cooking time.
• Caramelize onions slowly for deeper flavor.
• Avoid overcooking rice in the skillet as it will finish cooking in the oven.
• Stir the creamy mixture well before pouring to ensure even distribution.
• Allow the casserole to rest briefly after baking for easier serving.

How to Serve

Serve this casserole hot as a satisfying main dish. It pairs well with a fresh green salad or steamed vegetables to balance the richness. A crusty baguette is also a great accompaniment for soaking up any extra sauce.

Make Ahead and Storage

Storing Leftovers

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

Freezing

This casserole freezes well. Wrap tightly and freeze for up to 2 months. Thaw overnight in the refrigerator before reheating.

Reheating

Reheat covered in the oven at 350°F (175°C) until warmed through or microwave individual portions.

FAQs

1. Can I use brown rice instead of white rice?
   Brown rice requires a longer cooking time and more liquid, so adjustments are necessary.
2. Can I make this casserole dairy-free?
   Substitute milk, sour cream, and cheese with dairy-free alternatives.
3. Is it necessary to use onion soup mix?
   It adds authentic flavor, but you can substitute with homemade onion soup seasoning.
4. Can I use fresh herbs instead of dried?
   Yes, fresh Italian herbs and thyme can be used; use about three times the amount of dried herbs.
5. How do I prevent the rice from becoming mushy?
   Cook rice partially on the stove before baking and monitor liquid levels carefully.
6. Can I add more vegetables?
   Yes, add any favorites like bell peppers, spinach, or peas.
7. What’s a good substitute for sherry?
   Dry white wine or extra beef broth can be used.
8. Can I prepare this casserole entirely ahead of time?
   Yes, assemble and refrigerate before baking, but add extra baking time if cold.
9. How many does this recipe serve?
   About 6 servings.
10. Can I double the recipe?
    Yes, use a larger baking dish and adjust baking time accordingly.

Conclusion

French Onion Ground Beef and Rice Casserole is a comforting, flavorful meal that combines classic French onion soup flavors with hearty beef and creamy cheese in a satisfying one-dish dinner. Its ease of preparation and rich taste make it perfect for family dinners or batch cooking. Whether enjoyed fresh from the oven or reheated as leftovers, this casserole is a delicious way to bring warmth and comfort to your table.

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