Creamy, cheesy, and packed with deep umami flavor, this French Onion Ground Beef and Rice Casserole is pure comfort in a dish. Imagine forkfuls of tender rice layered over juicy ground beef, all baked in a savory French onion sauce and crowned with bubbly golden cheese. It’s hearty, satisfying, and made to impress your family or dinner guests with minimal effort.
Whether you’re looking for a crowd-pleasing weeknight dinner or a dish to bring to your next potluck, this casserole nails it every time. With its irresistible blend of textures and flavors, it delivers that nostalgic, homemade vibe but with a gourmet twist. One bite, and you’ll know this is a keeper.
What Kind of Rice Should I Use?
This casserole works best with long grain white rice or jasmine rice that’s already cooked. Avoid using instant or parboiled rice, as it won’t hold its structure or absorb the flavors as well. Day-old rice from the fridge also works great since it tends to soak up the sauce more efficiently.
Ingredients for the French Onion Ground Beef and Rice Casserole
- Ground Beef: Provides a rich, meaty base for the casserole. Go for 85/15 lean-to-fat ratio for the perfect balance.
- Cooked White Rice: Gives the dish its comforting bulk and fluffy texture.
- French Onion Soup (Condensed): The star flavor. It deepens the savory profile and adds a cozy, caramelized onion taste.
- Sour Cream: Adds a tangy creaminess that balances the dish.
- Shredded Mozzarella Cheese: Melts beautifully into a gooey layer that ties everything together.
- Butter: Used for sautéing and enriching the flavor.
- Onion Powder and Garlic Powder: Boost the French onion flavor and enhance the beef.
- Chopped Parsley (optional): A fresh sprinkle for garnish and color.


How To Make the French Onion Ground Beef and Rice Casserole
Step 1: Brown the Beef
In a large skillet over medium heat, melt the butter and add the ground beef. Cook until browned, breaking it up with a wooden spoon. Drain any excess fat.
Step 2: Season the Base
Add onion powder, garlic powder, and a pinch of salt and pepper. Stir to coat the beef evenly with flavor.
Step 3: Combine Ingredients
In a large mixing bowl, combine the cooked beef, cooked rice, condensed French onion soup, and sour cream. Mix everything until well incorporated.
Step 4: Assemble the Casserole
Preheat your oven to 350°F (175°C). Spread the beef and rice mixture into a greased 9×13-inch baking dish. Top evenly with shredded mozzarella cheese.
Step 5: Bake to Perfection
Bake uncovered for 25-30 minutes, or until the cheese is melted and golden brown.
Step 6: Garnish and Serve
Sprinkle with fresh chopped parsley for a touch of color and freshness before serving.
Serving and Storing This Casserole
Serve this dish hot and bubbly, straight out of the oven. It pairs beautifully with a crisp green salad or some crusty bread. To store leftovers, allow the casserole to cool completely. Transfer to an airtight container and refrigerate for up to 4 days. Reheat individual portions in the microwave or warm the whole dish in a 300°F oven until heated through.
This casserole also freezes well—wrap tightly and freeze for up to 2 months. When ready to enjoy, thaw overnight in the fridge and reheat as usual.
What to Serve With French Onion Ground Beef and Rice Casserole?
1. Garlic Roasted Green Beans
A crunchy, garlicky side that balances the richness of the casserole.
2. Caesar Salad
Crisp romaine, creamy dressing, and crunchy croutons add freshness to your meal.
3. Crusty French Bread
Perfect for soaking up that cheesy goodness.
4. Sautéed Mushrooms
Their earthy depth pairs beautifully with the caramelized onion flavors.
5. Roasted Brussels Sprouts
Roasted with olive oil and a pinch of sea salt, these add a nice bitterness to offset the creamy casserole.
6. Apple Cranberry Coleslaw
A light, tangy slaw to cleanse the palate.
7. Honey-Glazed Carrots
Their sweet and buttery profile complements the savory beef and rice.
Want More Casserole Ideas?
If you love this French Onion Ground Beef and Rice Casserole, you’ll probably enjoy these cozy favorites:
- Creamy Velveeta Beef Bowtie Pasta for a creamy, meaty pasta fix.
- Runza Casserole with savory beef and cabbage tucked in a soft crust.
- Easy Shepherd’s Pie for another comforting, layered dish.
- Slow Cooker Chicken and Dumplings when you want something equally hearty but chicken-based.
- Hashbrown Chicken Casserole for a cheesy spin with crispy potatoes.
Save This Pin For Later
Save this delicious idea to your favorite Pinterest board so it’s easy to find when you’re ready to whip it up again.
Tried it with a twist? Maybe added a sprinkle of crispy onions on top or swapped mozzarella for Gruyère? I’d love to hear how it turned out—drop your tips or questions in the comments below.
Need more inspiration? Explore my daily kitchen creations on SavorQueen Recipes on Pinterest. Your next favorite might be waiting there.

French Onion Ground Beef and Rice Casserole
- Total Time: 40 minutes
- Yield: 6 servings
Description
Bring the comfort of a cozy diner meal right to your kitchen with this French Onion Ground Beef and Rice Casserole. It’s a one-dish wonder featuring seasoned ground beef, fluffy white rice, creamy French onion sauce, and bubbling cheese. Whether you’re looking for an easy dinner idea, a crowd-pleasing potluck favorite, or just a simple yet hearty food idea, this dish checks all the boxes. Perfect for a busy night, yet rich and indulgent enough for special occasions—your new go-to in the world of easy recipes.
Ingredients
1 lb ground beef
3 cups cooked white rice
1 can (10.5 oz) condensed French onion soup
1 cup sour cream
2 cups shredded mozzarella cheese
2 tbsp butter
1 tsp onion powder
1 tsp garlic powder
1 tbsp chopped parsley (optional)
Instructions
1. In a large skillet, melt butter over medium heat. Add ground beef and cook until browned. Drain excess fat.
2. Stir in onion powder, garlic powder, salt, and pepper.
3. In a bowl, mix cooked beef, cooked rice, condensed soup, and sour cream until well combined.
4. Preheat oven to 350°F (175°C) and grease a 9×13-inch baking dish.
5. Spread the mixture evenly in the dish and top with shredded mozzarella cheese.
6. Bake uncovered for 25–30 minutes or until cheese is melted and bubbly.
7. Garnish with chopped parsley before serving.
Notes
Use day-old rice for better texture and flavor absorption.
For a flavor twist, swap mozzarella with Gruyère or provolone.
- Prep Time: 10 minutes
- Cook Time: 30 minutes
- Category: Dinner
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 portion
- Calories: 480
- Sugar: 3g
- Sodium: 870mg
- Fat: 28g
- Saturated Fat: 13g
- Unsaturated Fat: 13g
- Trans Fat: 0.5g
- Carbohydrates: 28g
- Fiber: 1g
- Protein: 26g
- Cholesterol: 95mg
Keywords: easy dinner, casserole recipe, French onion beef, weeknight meal