French Onion Ground Beef Rice Casserole

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This French Onion Ground Beef Rice Casserole is your go-to weeknight dinner when comfort food calls. Imagine a creamy, beefy, cheesy dish that delivers all the cozy flavors of French onion soup, baked into a satisfying one-pan meal. It layers ground beef, caramelized onions, rice, and melty cheese into a hearty casserole that’s both nostalgic and crave-worthy.

Perfect for busy families or meal prep enthusiasts, this casserole takes pantry staples and turns them into something spectacular. With minimal prep and simple ingredients, it’s an easy, filling dish that doesn’t compromise on flavor. Whether served for a casual family dinner or reheated for leftovers, this casserole hits the spot every time.

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What Kind of Rice Should I Use?

For this casserole, long-grain white rice works best. It holds its shape and doesn’t turn mushy during baking. Avoid quick-cooking or instant rice, as they may overcook or absorb too much liquid too fast. If you prefer brown rice, be sure to pre-cook it, since it requires a longer cooking time than white rice.

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Ingredients for the French Onion Ground Beef Rice Casserole

Ground Beef – A savory base that adds protein and flavor. Opt for lean ground beef to keep the dish balanced and not overly greasy.

Long-Grain White Rice – Provides the comforting starch element. Its texture is ideal for soaking up all the rich onion and beef flavors.

French Onion Soup (Canned or Homemade) – Delivers that deep, caramelized onion taste throughout the dish.

Beef Broth – Enhances the meaty flavor and ensures the rice cooks up perfectly moist.

Worcestershire Sauce – Adds umami richness and complexity to the beef.

Butter – Used for sautéing the onions and layering in richness.

Onions – Thinly sliced and sautéed until golden for maximum flavor depth.

Shredded Cheese (Cheddar or a Blend) – Melted on top for a gooey, golden finish that makes the casserole irresistible.

Parsley (Optional) – For a pop of freshness and color before serving.

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How To Make the French Onion Ground Beef Rice Casserole

Step 1: Brown the Ground Beef

Start by heating a large skillet over medium heat. Add the ground beef and cook until browned, breaking it apart as it cooks. Drain any excess grease to keep the casserole from becoming oily.

Step 2: Sauté the Onions

In the same skillet, melt the butter and add the sliced onions. Cook them over medium-low heat until they turn soft and golden brown. This step brings out their natural sweetness and mimics the flavor of classic French onion soup.

Step 3: Combine Ingredients

Add the cooked ground beef back into the skillet with the sautéed onions. Stir in the French onion soup, beef broth, and Worcestershire sauce. Let everything simmer for 2-3 minutes so the flavors can meld.

Step 4: Add the Rice

Stir in the uncooked long-grain white rice, ensuring it is evenly coated in the mixture. Transfer everything to a greased 9×13-inch baking dish, smoothing it out into an even layer.

Step 5: Bake

Cover the baking dish tightly with foil and bake at 350°F (175°C) for 45 to 50 minutes, or until the rice is tender and most of the liquid is absorbed.

Step 6: Top with Cheese

Remove the foil and sprinkle shredded cheese over the top. Return the dish to the oven uncovered and bake for another 5-10 minutes, or until the cheese is melted and bubbly.

Step 7: Garnish and Serve

Let the casserole rest for a few minutes after removing it from the oven. Garnish with chopped parsley if desired, then scoop and serve warm.

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Serving and Storing This Casserole

This casserole is a full meal on its own, but it also pairs wonderfully with a fresh green salad or steamed vegetables. The richness of the beef and cheese balances beautifully with crisp, tangy sides. It’s also perfect for potlucks and gatherings, since it holds up well on a buffet table.

To store, let the casserole cool completely. Cover and refrigerate for up to 4 days. For longer storage, portion into airtight containers and freeze for up to 2 months. Reheat individual servings in the microwave or warm the entire dish in the oven at 300°F until heated through.

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Frequently Asked Questions

How do I make this casserole creamier?

If you love extra creamy casseroles, stir in a few tablespoons of sour cream or a splash of heavy cream before baking. It makes the rice even more indulgent.

Can I use ground turkey instead of beef?

Absolutely. Ground turkey or chicken works well and lightens up the dish while still soaking in all those savory French onion flavors.

What kind of cheese is best?

Cheddar melts beautifully, but a combination of cheddar and mozzarella or Monterey Jack adds a lovely stretchy texture and richer taste.

Is this recipe gluten-free?

It can be! Just make sure your French onion soup and Worcestershire sauce are certified gluten-free, and you’re good to go.

Can I make this ahead of time?

Yes! Assemble the casserole the day before, cover tightly, and refrigerate. When ready to bake, let it sit at room temperature for 15–20 minutes, then bake as directed.

How do I know when the rice is fully cooked?

The rice should be tender and have absorbed most of the liquid. If it’s still firm after 50 minutes, add a splash more broth, cover again, and bake an additional 5-10 minutes.

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Want More Casserole Ideas?

If you’re loving this French Onion Ground Beef Rice Casserole, here are some other comfort food casseroles and cozy mains you’ll enjoy next:

• Cheesy Broccoli Rice Casserole for a veggie-packed twist.
• Bacon Egg and Hash Brown Casserole to bring breakfast-for-dinner into your rotation.
• Crab Casserole if you want a seafood spin on classic comfort.
• Garlic Butter Chicken with Creamy Ricotta Alfredo Pasta for a creamy and garlicky pasta casserole.
• Deep Hamburger Sausage Pepperoni Pie when you’re in the mood for bold, cheesy meatiness.

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📌 Save this recipe to your Pinterest dinner board so you can find it later on busy nights.

And if you make it, let me know how it turned out! Did you try a different type of cheese or swap the meat? I’d love to hear what tweaks you made.

Share your photos and tag me — or check out more of my everyday cozy meals over on Pinterest at Life with Nina.

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