
This French onion ground beef casserole is the answer when you need an easy weeknight dinner that delivers all the cozy flavors of classic French onion soup with the heartiness of a main dish. Layers of tender long-grain rice soak up a deeply savory blend of beef consommé and French onion soup while juicy ground beef and golden butter bring it all together. Easy to make ahead and flexible for add-ins like cheese or a crunchy topping, this casserole never lasts long at gatherings.
I love how this recipe makes my kitchen smell inviting even before dinner hits the table. It quickly became a family favorite because everyone can make it their own with toppings and add-ins.
Gather Your Ingredients
- Lean ground beef: adds hearty protein and savory richness be sure to choose beef with minimal fat for less grease
- Garlic salt: wakes up all the flavors try to find one with real garlic pieces if possible
- Beef consommé: deepens the meaty notes and gives a luscious texture seek out low-sodium options if sensitive to salt
- French onion soup: brings signature sweet caramelized flavor canned or homemade works well
- Long grain white rice: provides a fluffy base that absorbs all the juices rinse before using for the best texture
- Butter: melts into every bite giving the casserole richness use real unsalted butter for maximum flavor and control
- Water: helps ensure every grain cooks up perfectly filtered water if possible
How to Make It
- Preheat and Prep:
- Set your oven to 425 degrees Fahrenheit right away so it is fully hot before baking. Spray a nine by thirteen inch dish generously to keep things from sticking no one wants burnt edges.
- Brown the Beef:
- In a large skillet add the ground beef and sprinkle with garlic salt. Cook over medium heat breaking up the meat with your spoon until it is browned with no pink left. Drain off extra fat if needed for a lighter casserole.
- Mix the Casserole:
- Pour the uncooked rice straight into your prepared dish. Scatter the cooked beef over the rice stirring gently so it is well combined. Pour in both cans of beef consommé and both cans of French onion soup followed by three fourths cup water. Stir until everything looks evenly mixed these flavors are the soul of the dish.
- Add the Butter:
- Slice your butter and distribute the pats evenly over the surface. Do not skip this step as it will keep the top golden and luscious.
- First Bake:
- Cover the casserole tightly with foil and slide it onto the oven center rack. Bake for thirty minutes to let the rice start soaking up all the broth.
- Final Bake:
- Carefully remove the foil and continue baking for another thirty minutes. This is when the magic happens. If you like melt cheese or toss on fried onions for the ultimate finish during the last ten minutes.
- Serve:
- Once it is bubbling and golden fluff the rice gently with a fork so every piece is coated in flavor. Let it sit for a few minutes before serving so everything sets up perfectly.

My personal favorite part is how the top gets slightly crisp and golden from the butter. Sometimes my family gathers around the oven just to enjoy the aroma floating through the house. Even the pickiest eaters clear their plates with this one.
Flavor Boosters
Store leftovers in an airtight container in the refrigerator and they will stay fresh for three to four days. To reheat, cover with foil and warm in a low oven or use the microwave for busy lunches. If freezing, portion into airtight containers once cooled, then thaw overnight in the fridge before reheating for best results.
Serving Suggestions
Serve with a simple green salad or roasted green beans for a balanced meal. This casserole pairs well with crusty bread for soaking up every bit. Kids especially love it with a handful of crispy fried onions on top.
Creative Twists
If you do not have beef consommé you can use beef broth though the flavor will be lighter. Substitute ground turkey for beef for a leaner option. Add sautéed mushrooms or bell peppers for extra veggie power. A sprinkle of provolone or gruyere cheese makes it taste just like French onion soup.

Over the years friends have brought this casserole to potlucks and church dinners, always returning home with an empty dish. Every version gets rave reviews and the flexibility of add-ins makes it a true crowd-pleaser.
Common Questions About This Recipe
- → Can I add cheese to this casserole?
Yes, add 1½ cups shredded cheese like provolone or Swiss during the last 10 minutes of baking for a creamy finish.
- → What toppings pair well with this casserole?
Top with crispy fried onions or sliced jalapeños for a crunchy contrast. Cheese or fresh herbs also work well.
- → Can I prepare this in a single pot?
Absolutely! Use a Dutch oven or large cast iron skillet for a convenient one-dish method from stovetop to oven.
- → Is it possible to substitute the rice?
You can try brown rice or parboiled rice. Adjust liquid and cooking times as needed for different varieties.
- → How do I store and reheat leftovers?
Store leftovers in an airtight container in the fridge for up to 3 days. Reheat in the oven or microwave until hot.