There’s nothing quite like the rich, savory aroma of a casserole baking in the oven, especially on a chilly evening. I remember the first time I pulled a bubbling dish of French Onion Ground Beef and Rice Casserole from the oven; the golden cheese melted perfectly over tender layers of beef and rice, inviting everyone to gather ‘round the dinner table.
This isn’t just any casserole—it’s a warm hug in food form, combining the beloved flavors of classic French onion soup with a hearty, comforting twist. Whether you’re looking to impress guests at a potluck or simply searching for an easy weeknight dinner option, this dish checks all the boxes. With its creamy texture and umami notes, it’s destined to become a family favorite, rekindling fond memories of home cooking while delivering on flavor. Get ready to dive into a meal that’s as satisfying to make as it is to eat!

Why is French Onion Ground Beef and Rice Casserole a Must-Try?
Comforting Flavors: This casserole combines the nostalgia of French onion soup with the heartiness of beef and rice, delivering a dish that warms you from the inside out.
Easy Preparation: Just a few simple steps are needed to create this savory masterpiece, perfect for those busy weeknights.
Cheesy Delight: With a bubbly, golden layer of melted mozzarella, each bite is a rich, cheesy experience that will leave you craving more.
Family-Friendly: Even the pickiest eaters will love it! This dish unites everyone at the table, making mealtime a joyful occasion.
Versatile Side Pairings: Serve it alongside a crisp green salad or crusty bread for the ultimate meal experience, enhancing the comforting flavors even more.
Discover how the flavors come alive and bring your family together with this easy crowd-pleaser!
French Onion Ground Beef and Rice Casserole Ingredients
For the Casserole
- Ground Beef – This provides the protein base and rich flavor; use lean beef to reduce grease.
- Cooked White Rice – Adds bulk and texture; day-old rice absorbs flavors better, making it perfect for this casserole.
- Condensed French Onion Soup – Serves as the sauce base, adding depth and richness to the dish.
- Sour Cream – Contributes creaminess and slight tang; consider substituting with Greek yogurt for a lighter option.
- Mozzarella Cheese – Melts beautifully on top for a rich, cheesy finish; feel free to swap with Gruyère or provolone for more flavor.
- Butter – Essential for browning the beef and adding additional richness.
- Onion Powder – Enhances the onion flavor consistently throughout the dish.
- Garlic Powder – Adds a lovely complexity to the flavor profile.
- Chopped Parsley – An optional garnish that brings freshness and color to the final presentation.
How to Make French Onion Ground Beef and Rice Casserole
- Brown the Beef: In a large skillet, melt butter over medium heat. Add the ground beef and cook until browned, about 7-10 minutes, breaking it up as it cooks. Drain excess fat for a lighter dish.
- Season the Beef: Stir in onion powder, garlic powder, and a pinch of salt and pepper. Mix well to ensure the beef is evenly coated with the seasonings.
- Mix Ingredients: In a mixing bowl, combine the cooked beef with the cooked white rice, condensed French onion soup, and sour cream. Stir until everything is well incorporated and creamy.
- Prep the Oven: Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish to prevent sticking and make cleanup easier.
- Assemble Casserole: Spread the beef and rice mixture evenly in the baking dish. Top generously with shredded mozzarella cheese for that delicious cheesy goodness.
- Bake: Place the casserole in the preheated oven and bake uncovered for 25-30 minutes, or until the cheese is melted and bubbly, with a golden brown hue.
- Garnish and Serve: Once baked, remove from the oven and sprinkle with chopped parsley for freshness and a pop of color before serving.
Optional: For an extra flavor boost, add crispy fried onions on top right after baking.
Exact quantities are listed in the recipe card below.

Expert Tips for French Onion Ground Beef and Rice Casserole
• Use Day-Old Rice: Opt for cooked, day-old rice to ensure it absorbs the sauce’s flavors better, resulting in a more delicious casserole.
• Don’t Overcook the Beef: Cook the ground beef just until it’s browned; overcooking can lead to a tough texture.
• Layer Your Cheese: For a truly indulgent experience, consider mixing some cheese into the casserole before topping it, enhancing the cheesy goodness throughout.
• Broil for a Golden Finish: If you like your cheese extra crispy, turn on the broiler for the last minute of baking to achieve that beautiful golden color.
• Customize Flavor: Experiment with adding sautéed mushrooms or bell peppers for added depth to your French Onion Ground Beef and Rice Casserole.
Storage Tips for French Onion Ground Beef and Rice Casserole
- Fridge: Store leftovers in an airtight container for up to 4 days. Reheat in the microwave or oven at 300°F until heated through to maintain that creamy goodness.
- Freezer: This casserole can be frozen for up to 2 months. Allow to cool completely before wrapping in plastic wrap and aluminum foil for best protection.
- Thawing: When ready to enjoy, thaw in the fridge overnight. Reheat thoroughly before serving to ensure the delicious flavors are back in full force.
- Reheating: For optimal results, reheat in the oven instead of the microwave. This helps revive the texture and flavor of the French Onion Ground Beef and Rice Casserole.
What to Serve with French Onion Ground Beef and Rice Casserole?
Looking to complete your meal with delightful pairings? Here’s how to elevate your dining experience.
- Crisp Green Salad: A fresh salad with mixed greens and a tangy vinaigrette cuts through the casserole’s richness, balancing flavors beautifully.
- Garlic Bread: Warm, buttery garlic bread pulls in comforting flavors, perfect for sopping up any extra sauce from the casserole.
- Steamed Broccoli: Lightly steamed broccoli adds a bright, vibrant touch and a satisfying crunch that complements the hearty dish.
- Roasted Carrots: Sweet and tender, roasted carrots offer a lovely contrast to the savory beef, enhancing the overall taste profile of your meal.
- Mashed Potatoes: Creamy mashed potatoes bring an extra layer of comfort to the table, absorbing the casserole’s savory goodness.
- Homemade Coleslaw: Crunchy coleslaw with a zesty dressing adds a refreshing element, making each bite an exciting experience.
- Chardonnay: A chilled glass of Chardonnay harmonizes well with the cheese and savory notes of the casserole, making it a perfect dinner companion.
- Apple Crisp: For dessert, a warm apple crisp topped with vanilla ice cream echoes the homey nature of the casserole, creating a delightful sweet finish.
French Onion Ground Beef and Rice Casserole Variations
There’s always room for creativity in the kitchen! Let your taste buds take a journey by trying these delightful twists.
- Cheese Swap: Use Gruyère or provolone for a richer, more robust cheese flavor that enhances the casserole’s depth.
- Veggie Boost: Stir in sautéed mushrooms or bell peppers to add extra layers of flavor and nutrition to the dish.
- Herb Infusion: Incorporate fresh thyme or rosemary into the mixture for a fragrant herbal touch that elevates each bite.
- Crunchy Topping: Add crispy fried onions or crushed crackers over the cheese before baking for an irresistible crunch.
- Spicy Kick: Blend in diced jalapeños or a dash of hot sauce to give the casserole an exciting kick, perfect for heat lovers.
- Healthier Twist: Replace sour cream with Greek yogurt for a lighter, protein-packed alternative without sacrificing creaminess.
- Grain Alternative: Swap white rice with quinoa or brown rice for a nutritious grain option that adds a nutty flavor profile.
- Mexican Flair: Mix in some taco seasoning and top with cheddar cheese for a fun fusion inspired by taco night!

French Onion Ground Beef and Rice Casserole Recipe FAQs
What type of ground beef should I use?
Absolutely! Using lean ground beef is recommended to reduce grease and ensure the dish remains hearty yet not overly greasy. If you prefer more flavor, feel free to use regular ground beef; just drain any excess fat after browning.
How do I store leftovers from the casserole?
Leftovers can be stored in an airtight container in the fridge for up to 4 days. Just make sure to allow the casserole to cool completely before sealing it up. To reheat, pop it back in the oven at 300°F until warmed through, which helps to maintain its creamy texture.
Can I freeze the French Onion Ground Beef and Rice Casserole?
Yes! This casserole freezes beautifully for up to 2 months. To freeze, allow it to cool completely, then wrap it tightly in plastic wrap followed by aluminum foil to prevent freezer burn. When you’re ready to enjoy it, simply thaw overnight in the fridge and reheat thoroughly in the oven for the best results.
What should I do if my casserole is too dry?
If you find your casserole is on the dry side, you can easily remedy this! Before baking, mix in an extra splash of condensed French onion soup or a dollop of sour cream to add moisture. Alternatively, cover the dish with foil during baking to keep the steam in, especially if you’re reheating leftover portions.
Are there any dietary considerations for this casserole?
Definitely! For those with dairy allergies, consider substituting the sour cream with a dairy-free yogurt. You can also use vegan cheese alternatives for a dairy-free version. Always check the condensed soup ingredients as well, as some may contain allergens or gluten.
How can I enhance the flavor of the casserole?
The more, the merrier! To elevate the flavors further, consider adding sautéed mushrooms, bell peppers, or even crispy fried onions on top before serving. Experimenting with herbs like thyme or rosemary can also add a delightful twist that complements the onion flavor beautifully.

Indulgent French Onion Ground Beef and Rice Casserole Bliss
Equipment
- Large skillet
- Mixing bowl
- Baking Dish
Ingredients
For the Casserole
- 1 pound Ground Beef use lean beef to reduce grease
- 3 cups Cooked White Rice day-old rice absorbs flavors better
- 1 can Condensed French Onion Soup
- 1 cup Sour Cream optional to substitute with Greek yogurt
- 2 cups Mozzarella Cheese can swap with Gruyère or provolone
- 2 tablespoons Butter for browning the beef
- 1 teaspoon Onion Powder
- 1 teaspoon Garlic Powder
- 1 tablespoon Chopped Parsley optional garnish
Instructions
How to Make French Onion Ground Beef and Rice Casserole
- In a large skillet, melt butter over medium heat. Add the ground beef and cook until browned, about 7-10 minutes, breaking it up as it cooks. Drain excess fat.
- Stir in onion powder, garlic powder, and a pinch of salt and pepper. Mix well to ensure the beef is evenly coated with the seasonings.
- In a mixing bowl, combine the cooked beef with the cooked white rice, condensed French onion soup, and sour cream. Stir until everything is well incorporated and creamy.
- Preheat your oven to 350°F (175°C). Grease a 9x13-inch baking dish to prevent sticking.
- Spread the beef and rice mixture evenly in the baking dish. Top generously with shredded mozzarella cheese.
- Place the casserole in the preheated oven and bake uncovered for 25-30 minutes, or until the cheese is melted and bubbly.
- Once baked, remove from the oven and sprinkle with chopped parsley before serving.
Notes
Nutrition




Leave a Comment