Hamburger Potato Casserole layers tender potato rounds, browned ground beef, and onions with a simple creamy cheddar sauce. The top turns golden in the oven while the center stays soft and savory. It is a filling dinner made from familiar ingredients, with enough sauce to bring the layers together without turning them soupy.
A short simmer gives the potatoes a head start. That means the cooked beef does not have to spend an extra hour in the oven waiting for raw potato slices to soften. The sauce is made in a saucepan with milk, butter, and flour, so there is no condensed soup in this version.
Recipe at a glance
- Servings: 6
- Prep: 20 minutes
- Stovetop: about 20 minutes, with some tasks overlapping
- Bake: 30–40 minutes
- Rest: 10 minutes
- Total: about 1 hour 20 minutes
- Oven: 375°F (190°C)
Ingredients
- 2 pounds (900 g) Yukon Gold potatoes, scrubbed
- 1 1/2 pounds (680 g) ground beef, 85–90% lean
- 1 large yellow onion, chopped
- 2 garlic cloves, minced
- 1 teaspoon Worcestershire sauce
- 1/2 teaspoon paprika
- 3/4 teaspoon fine salt, divided, plus salt for boiling water
- 1/2 teaspoon black pepper, divided
- 2 tablespoons butter, plus a little for the dish
- 2 tablespoons all-purpose flour
- 2 cups (480 ml) milk
- 1/2 cup (120 ml) low-sodium beef broth
- 2 cups (225 g) shredded cheddar, divided
- Chopped parsley, optional
Ingredient notes
Yellow potatoes keep a pleasant shape after boiling and baking. Cut them into even rounds about 1/8–3/16 inch thick. A mandoline can help, but use its guard and stop before the potato becomes too small to handle safely. Thin skins can stay on.
Ground beef with a little fat gives the casserole good flavor. Drain any large excess after browning. Sharp cheddar provides a stronger taste than mild cheddar; freshly grated cheese usually melts more smoothly into the milk sauce.
Whole or 2% milk works for the sauce. Warm it slightly or add it gradually while whisking to avoid lumps. The sauce should coat a spoon but remain pourable enough to reach between the potato slices.
How to make Hamburger Potato Casserole
Step 1: Parboil the potatoes
Heat the oven to 375°F (190°C) and butter a 9-by-13-inch baking dish. Put the sliced potatoes in a saucepan, cover with cold lightly salted water, and bring to a gentle simmer. Cook for 4–6 minutes after simmering begins, until the slices start to soften but still hold their shape.
Drain carefully and let steam escape for 2 minutes. Do not stir aggressively or the thin rounds can break. They will finish cooking in the oven.
Step 2: Cook the beef and make the sauce
Brown the beef and onion in a large skillet over medium-high heat for 8–10 minutes, breaking the meat into crumbles. Cook ground beef to 160°F. Drain excess fat, then stir in the garlic, Worcestershire sauce, paprika, 1/2 teaspoon salt, and 1/4 teaspoon pepper. Cook for another minute.
In a saucepan, melt the butter over medium heat. Stir in the flour and cook for 1 minute. Gradually whisk in the milk, followed by the broth. Simmer gently for 3–5 minutes, whisking, until lightly thickened. Remove from heat and stir in 1 cup cheddar, the remaining salt, and remaining pepper. Taste and adjust.
Step 3: Build the layers
Arrange half the potatoes in the baking dish. Add half the beef mixture and half the cheese sauce. Repeat with the remaining potatoes, beef, and sauce, spreading gently so the sauce reaches the edges.
Sprinkle the remaining 1 cup cheddar over the top. Cover with foil, tenting it slightly so it does not press into the cheese. Set the dish on a rimmed baking sheet if it is close to full.
Step 4: Bake until bubbly and tender
Bake covered for 20 minutes. Remove the foil and bake for another 10–20 minutes, until the top is golden and the sauce bubbles around the edges. Test a potato near the center with a small knife; it should slide through easily. The center of the casserole should reach 165°F.
If the potatoes are still firm, cover again and continue baking in short intervals. Rest for 10 minutes before serving so the sauce can settle. Finish with parsley if using.
Tips for a good casserole
- Slice evenly. Thick rounds can remain firm when the rest is ready.
- Keep the sauce pourable. A very thick sauce will sit on top rather than flow through the layers.
- Drain the meat. Excess fat can separate from the cheese sauce.
- Check the middle. The edges usually finish first.
- Allow the rest. Fresh from the oven, the layers are too loose to serve neatly.
Variations and sides
Try half cheddar and half Monterey Jack for a milder topping. A handful of sautéed mushrooms can join the beef, or add a small amount of cooked, well-drained spinach. Cook moisture out of vegetables first so the sauce does not become watery.
Ground turkey can replace the beef if cooked to 165°F before assembly. Use a little oil in the skillet if it is very lean. Serve the casserole with green beans, broccoli, or a salad dressed with lemon or vinegar to balance the rich sauce.
For another hearty potato bake, see our cheesy potato and smoked sausage casserole.
Make-ahead and leftovers
Prepare the beef and sauce a day ahead, cool promptly in shallow containers, and refrigerate. Parboil the potatoes close to assembly for the best texture. A chilled assembled casserole needs extra covered baking time; use a thermometer and check potato tenderness. Follow your bakeware’s directions to avoid sudden temperature changes.
Refrigerate leftovers within 2 hours and use within 3–4 days. Reheat covered until 165°F throughout, adding a spoonful of milk or broth if the sauce has thickened. Freeze cooled portions for up to 2 months for best quality and thaw in the refrigerator before reheating. The potatoes may soften slightly after freezing.
Frequently asked questions
Can I skip boiling the potatoes?
The timing here relies on partly cooked slices. Raw potatoes require a longer covered bake and may need a different amount of liquid.
Why is the sauce grainy?
Cheese can separate if boiled hard. Remove the white sauce from the heat before stirring in the cheese, and avoid overheating it.
Can I peel the potatoes?
Yes. Thin yellow skins are optional. Keep the slice thickness consistent either way.
Can I make half?
Use half the ingredients in an 8-inch square dish. Begin checking a little earlier, but still confirm tender potatoes and a hot center.