Hamburger Potato Casserole

This Hamburger Potato Casserole has layers of sliced potatoes, seasoned ground beef, peppers, onions, and homemade cheese sauce. It’s a rich and cheesy family-friendly meal made without canned soup.

This hamburger casserole recipe with potatoes is not a quick dump-and-bake dinner, but it is worth making when you want something from scratch that gives you leftovers. Seasoning the ground beef with my Steak Seasoning gives it a budget-friendly steak-and-potatoes feel without needing steak. I like it for Sunday dinner, meal prep, or a planned family meal. For another ground beef dinner, try my Oven Baked Hamburger Steaks.

Why You’ll Love This Recipe

• No canned soup: The homemade cheese sauce replaces cream of mushroom, cream of cheddar, or cream of chicken soup.
• Worth planning for: This takes more time than a dump-and-bake casserole, but the from-scratch sauce makes it feel more homemade.
• A full meal: With beef, potatoes, peppers, onions, and cheese, you only need a simple green vegetable on the side.

Ingredients You’ll Need

Here are the main ingredients you’ll need to make this hamburger meat potato casserole. Exact amounts are in the recipe card.

• Yukon Gold potatoes: These bake up creamy and hold their shape. I leave the skins on here, similar to how I do when making mashed potatoes with cheese, because Yukon Gold skins are thin and tender.
• Lean ground beef: Use lean ground beef so the casserole has flavor without too much extra grease.
• Steak seasoning: I use my Steak Seasoning to season the beef. Since I use that on dishes like my pan seared steak, it gives this casserole a more steak and potatoes flavor (but budget-friendly).
• Worcestershire sauce: Adds savory flavor to the browned beef.
• Unsalted butter: Starts the sauce and helps you control the salt.
• Yellow onion and green bell pepper: These cook into the sauce and add flavor throughout the casserole.
• Garlic: Fresh minced garlic works best.
• All-purpose flour: Thickens the sauce so it coats the layers.
• Beef broth: Adds savory flavor to the sauce.
• Whole milk: Keeps the sauce creamy.
• Dried thyme, salt, and black pepper: Season the sauce before it goes into the casserole.
• Sharp cheddar cheese: Gives the sauce and topping the best cheese flavor.
• Mozzarella cheese: Adds a melty layer in the middle.
• Green onions: A fresh finish for serving.

How to Make Hamburger Potato Casserole

This dish starts on the stovetop, then finishes in the oven. You’ll prep the potatoes, cook the beef, make the cheese sauce, layer everything, and bake until the potatoes are tender.

Slice the potatoes

Slice the potatoes into thin, even pieces. A mandolin makes this faster, but a sharp knife works too. Add half of the potatoes to a greased 9×13-inch baking dish.

Brown the beef

Cook the ground beef in a large skillet, breaking it into small pieces as it browns. Season it while it cooks, then stir in the Worcestershire sauce. Drain off any excess grease before layering.

Cook the vegetables

Melt the butter in a saucepan, then add the onion and bell pepper. Cook until they start to soften, then stir in the garlic near the end so it does not burn.

Make the sauce

Sprinkle the flour over the vegetables and stir until it coats them. Slowly whisk in the beef broth, then add the milk and seasonings. Simmer until the sauce thickens enough to coat a spoon.

Stir in the cheese

Take the saucepan off the heat, then stir in the cheddar until the sauce is smooth. If it gets too thick while you’re layering, loosen it with a small splash of milk.

Assemble and bake

Layer half of the beef and sauce over the potatoes. Add the mozzarella, then repeat with the remaining potatoes, beef, and sauce. Cover tightly with foil and bake until the potatoes are tender.

Finish and serve

Remove the foil, add the remaining cheddar, and bake until the cheese melts. Let the casserole rest before scooping, then top with green onions and black pepper.

Tips for the Best Texture and Flavor

These are the little details that make the biggest difference once the casserole goes into the oven.

• Slice the potatoes evenly: Thick or uneven slices are the main reason potatoes stay firm. Think thin, even slices like you’d use for scalloped potatoes so they bake through at the same pace.
• Drain the beef well: This keeps extra grease from mixing into the cheese sauce.
• Taste the sauce before layering: If the sauce tastes flat, the casserole will too.
• Keep the sauce spoonable: It should be thick enough to coat the potatoes, but loose enough to spread. Add a small splash of milk if it tightens too much.
• Cover the dish tightly: Foil helps the potatoes cook through before the top browns.
• Check the center: The cheese can look ready before the potatoes are tender, so test the middle with a small knife.
• Rest before serving: The sauce settles as it sits, making the casserole easier to scoop.

Make Ahead

You can assemble the casserole up to 24 hours ahead. Cover it tightly and keep it in the refrigerator until you’re ready to bake. If it goes into the oven cold, add extra covered bake time. I’d wait to add the final cheese topping until the potatoes are tender so the top does not overbrown.

Swaps and Variations

Use these when you want to adjust the recipe without changing the basic method.

• More burger flavor: Use burger seasoning instead of steak seasoning.
• Russet potatoes: Russets work, but I recommend peeling them first because the skins are thicker.
• Ground turkey or chicken: Either can replace the beef. Since they are milder, taste and adjust the seasoning.
• Ground pork or sausage: Ground pork works well if you want a richer casserole. You can also replace part of the beef with mild or spicy sausage.
• Extra vegetables: Mushrooms, peas, or mixed vegetables can be added to the beef mixture. Cook off extra moisture before layering.
• Richer sauce: Replace some of the milk with heavy cream.
• Different cheese: Colby Jack, Monterey Jack, pepper jack, or a cheddar blend can replace some of the sharp cheddar.
• More heat or smoky flavor: Add diced jalapeños, hot sauce, crushed red pepper, or smoked paprika.

What to Serve With Hamburger Potato Casserole

This casserole already has beef, potatoes, peppers, onions, and cheese, so a green vegetable is the best choice if you want something with it. Serve it with Sautéed Green Beans, Air Fryer Broccoli, Baked Asparagus, Instant Pot Cabbage, Slow Cooker Cabbage, or Roasted Brussels Sprouts with Bacon.

Storage and Reheating

• Store: Keep leftovers in an airtight container in the refrigerator for 3 to 4 days.
• Freeze: You can freeze leftovers. Freeze individual portions for up to 2 months. Simply thaw out the portions you need overnight in the refrigerator before reheating them.
• Reheat: Reheat single portions in the microwave until warmed through. For larger portions, cover with foil and warm in a 350°F oven until hot. Add a small splash of milk if the sauce seems too thick after chilling.

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