French Onion Ground Beef and Rice Casserole

This French Onion Ground Beef and Rice Casserole is the ultimate comfort dish savory, creamy, and loaded with flavor. Tender rice and juicy ground beef are baked together in a rich blend of French onion soup and creamy mushroom sauce, then topped with melted cheese for a golden, bubbly finish. Perfect for busy weeknights or cozy family dinners, it’s a one-pan meal that tastes like it’s been simmering all day but comes together with minimal effort.

Ingredients

For the Casserole:

• 1 lb ground beef
• 1 small onion, finely chopped
• 1 (10.5 oz) can French onion soup
• 1 (10.5 oz) can cream of mushroom soup
• 1 cup beef broth
• 1 cup long-grain white rice, uncooked
• 1 teaspoon garlic powder
• ½ teaspoon black pepper
• ½ teaspoon salt
• 1 cup shredded mozzarella or Swiss cheese

Optional Add-ins:

• ½ teaspoon Worcestershire sauce – for a deeper, richer flavor
• ½ cup sour cream – for a creamier, more indulgent texture
• Sautéed mushrooms or bell peppers – for extra texture and heartiness

Instructions

1. Preheat the oven:
   Preheat your oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish or similar casserole dish with butter or nonstick spray.
2. Cook the beef and onion:
   In a large skillet over medium heat, cook the ground beef and chopped onion until the beef is browned and the onion becomes soft and translucent. Drain off any excess grease to prevent the casserole from becoming oily.
3. Mix everything together:
   Stir in the French onion soup, cream of mushroom soup, beef broth, uncooked rice, garlic powder, black pepper, and salt. Mix until all the ingredients are well combined and evenly coated.
4. Transfer to the baking dish:
   Pour the mixture into the prepared casserole dish. Use a spatula to spread it evenly for consistent cooking.
5. Cover and bake:
   Cover the dish tightly with aluminum foil and bake for 45–50 minutes, or until the rice is tender and most of the liquid is absorbed.
6. Add the cheese:
   Remove the foil, sprinkle the top with shredded mozzarella or Swiss cheese, and return to the oven uncovered for another 10–15 minutes, until the cheese is melted and golden.
7. Serve:
   Let the casserole rest for 5 minutes before serving. Garnish with chopped parsley or crispy fried onions for an extra layer of texture and flavor.

Variation

1. Cheesy French Onion Twist
   Swap the mozzarella for Gruyère or provolone to give this casserole that classic French onion soup flavor. Gruyère melts beautifully and adds a nutty sharpness, while provolone delivers a smooth, creamy stretch. This small change takes the dish from homestyle comfort to bistro-style elegance.
2. Creamy Mushroom Upgrade
   Stir in ½ cup of sour cream before baking for a luxuriously creamy texture. It adds a subtle tang that balances the richness of the beef and cheese while making the rice extra velvety. Perfect if you enjoy casseroles that lean on the creamy side.
3. Loaded Veggie Version
   Add sautéed mushrooms, bell peppers, or peas for color and nutrition. The vegetables bring freshness and extra texture, while their natural sweetness enhances the savory depth of the soups. This version turns the dish into a more balanced, all-in-one meal.
4. Beef & Onion Deluxe
   Mix in a dash of Worcestershire sauce or a splash of soy sauce for an extra layer of umami richness. These ingredients enhance the caramelized onion flavor from the soup and give the casserole that irresistible “slow-cooked” depth without any extra effort.
5. Low-Sodium or Light Option
   Use low-sodium soups and broth to reduce salt content without sacrificing flavor. Season lightly, then adjust to taste after baking. It’s an easy way to make the casserole heart-healthier while still keeping it comforting and flavorful.

Cooking Notes

1. Rice Texture Tip
   Make sure you’re using long-grain white rice, as it cooks up fluffy and tender without becoming mushy. Avoid instant or parboiled rice they can overcook quickly and lose their texture in the oven.
2. Even Cooking
   Covering the casserole tightly with foil ensures steam stays trapped inside, allowing the rice to cook evenly in the savory liquid. If you notice the rice isn’t tender after baking, simply re-cover and bake an additional 10 minutes.
3. Cheese Choice Matters
   The final layer of cheese makes or breaks this casserole. For a melted, gooey finish, use mozzarella. For a bold, French onion soup–style flavor, go with Swiss or Gruyère. You can even combine the two for a perfect blend of creaminess and sharpness.
4. Rest Before Serving
   Letting the casserole rest for 5 to 10 minutes after baking helps the rice absorb any remaining liquid and allows the layers to settle. This small step ensures clean slices and perfect texture in every serving.
5. Batch Cooking Friendly
   This casserole freezes and reheats beautifully. Simply cool it completely, then portion into airtight containers. Reheat in the oven or microwave for a quick, satisfying meal that tastes freshly baked.

Serving Suggestions

1. Classic Comfort Combo
   Serve with a side of steamed green beans, buttered peas, or a crisp garden salad to balance out the rich flavors of the casserole. The freshness of the greens complements the creamy, savory notes beautifully.
2. French Bistro Style
   Elevate your dinner by pairing it with a toasted baguette slice or garlic bread to soak up the flavorful sauce. Add a glass of red wine or sparkling iced tea for a cozy, French-inspired meal.
3. Family-Style Dinner
   This casserole shines on a busy weeknight. Serve it right from the baking dish alongside simple roasted vegetables or mashed potatoes for hearty family comfort. It’s filling enough to feed a crowd without needing extra fuss.
4. Leftover Makeover
   Turn leftovers into stuffed bell peppers the next day! Scoop the casserole mixture into halved peppers, top with cheese, and bake until bubbly. It’s an easy way to transform last night’s meal into something completely new.
5. Party or Potluck Favorite
   Double the recipe and bake it in two dishes for a potluck or gathering. Its creamy texture, savory aroma, and cheesy topping make it a guaranteed crowd-pleaser that disappears fast.

Tips

• Make It Ahead
  Assemble the casserole up to 24 hours in advance, cover tightly, and refrigerate. When ready to bake, bring it to room temperature and pop it into the oven. It’s an easy way to prep dinner ahead of time without sacrificing flavor.
• Use Freshly Grated Cheese
  Pre-shredded cheese often contains anti-caking agents that prevent smooth melting. Grate your own mozzarella or Swiss for a creamier, silkier top layer that browns beautifully in the oven.
• Brown the Beef Well
  Don’t rush the browning step letting the beef cook until it develops a golden crust adds rich, meaty flavor. This caramelization is key to building that deep, savory base for your casserole.
• Adjust Liquids Carefully
  If you prefer a softer rice texture, add an extra ¼ cup of broth before baking. For firmer rice, reduce the broth slightly. This gives you total control over the consistency of your final dish.
• Add a Crunchy Topping
  For extra texture, sprinkle crispy fried onions or buttered breadcrumbs on top during the last few minutes of baking. They add a delicious contrast to the creamy layers beneath.

Prep Time:

• Prep Time: 10 minutes
• Cook Time: 60 minutes
• Total Time: 1 hour 10 minutes

Nutritional Information (Per Serving)

• Calories: 420
• Protein: 26g
• Sodium: 980mg
• Fat: 23g
• Saturated Fat: 10g
• Unsaturated Fat: 11g
• Trans Fat: 0.5g
• Carbohydrates: 30g
• Fiber: 1g
• Sugar: 4g
• Cholesterol: 85mg

Frequently Asked Questions

1. Can I use brown rice instead of white rice?
   Yes, but brown rice requires a longer cooking time and additional liquid. Add about ½ cup more broth and increase baking time by 20–25 minutes, or until the rice is tender and fully cooked through.
2. Can I make this casserole ahead of time?
   Definitely! You can assemble it up to a day in advance, cover tightly, and store in the refrigerator. When ready to bake, bring it to room temperature and follow the baking instructions as usual.
3. Can I use ground turkey or chicken instead of beef?
   Absolutely. Ground turkey or chicken are lighter options that still work beautifully. You may want to add a splash of Worcestershire or soy sauce for extra depth, since poultry is milder in flavor than beef.
4. What if my rice isn’t fully cooked after baking?
   If the rice is still slightly firm, cover the casserole again with foil, add an extra ¼ cup of hot broth, and bake for another 10–15 minutes. The steam will help finish cooking it perfectly.
5. How do I store and reheat leftovers?
   Store leftovers in an airtight container in the refrigerator for up to 3 days or freeze for up to 2 months. Reheat in the oven at 350°F until warm throughout or microwave individual portions for quick meals.

Conclusion

This French Onion Ground Beef and Rice Casserole is everything you love about classic comfort food hearty, creamy, cheesy, and packed with rich flavor. With just a handful of pantry staples, it transforms into a dish that feels like home on every bite. Whether you’re feeding the family on a busy weeknight, prepping ahead for guests, or simply craving something warm and satisfying, this casserole delivers every time. Serve it straight from the oven, watch the cheese bubble and melt, and enjoy the cozy aroma that fills your kitchen it’s comfort made simple.

Print