Hamburger Potato Casserole
hearty • family-friendly • cheesy
Hamburger Potato Casserole is the kind of old-fashioned comfort food that feels right at home on a busy weeknight. It layers seasoned ground beef, thinly sliced potatoes, creamy mushroom sauce, and plenty of melted cheddar cheese into one hearty, satisfying dinner.
This easy ground beef and potato casserole uses simple ingredients and bakes until the potatoes are tender, the sauce is creamy, and the cheese is melted and bubbly. Serve it with a green vegetable or simple salad, and dinner is handled.
For another easy ground beef and potato casserole, try Tater Tot Casserole.
Why This Recipe Works
This hamburger potato casserole keeps the ingredient list simple while still giving you a rich, satisfying dinner.
Lean ground beef gives the casserole savory flavor without making it greasy. Cooking the beef with onion, garlic, salt, and pepper before layering it into the dish makes sure the filling is seasoned from the start.
Thinly sliced russet potatoes bake into tender layers under the creamy sauce. The condensed cream of mushroom soup, milk, Worcestershire sauce, and onion powder create a simple sauce that coats the potatoes and beef as the casserole bakes.
Sharp cheddar cheese adds the cheesy comfort-food flavor people expect from a hamburger potato casserole. Some cheese is layered inside the casserole, and the rest is added near the end so the top melts without overbaking.
The covered baking time is important. It gives the potatoes enough time to become tender before the casserole is uncovered and finished with cheese on top.
Ingredients & Notes
- Ground Beef: Lean ground beef gives the casserole hearty flavor without making the creamy sauce greasy.
- Onion & Garlic: Add savory flavor to the beef mixture and help the casserole taste more homemade.
- Cream of Mushroom Soup & Milk: Create the creamy sauce that coats the beef and potatoes as they bake.
- Worcestershire & Seasonings: Worcestershire adds savory depth, while salt, pepper, and onion powder keep the flavor balanced.
- Russet Potatoes: Hold up well in layers and become tender as they bake. Thin, even slices are important for consistent cooking.
- Sharp Cheddar: Gives the casserole plenty of cheesy flavor. Freshly shredded cheddar melts more smoothly than pre-shredded.
- Green Onions: Optional, but they add a fresh finish and a little color.
Equipment
- 9×13-inch baking dish
- Large skillet
- Medium mixing bowl
- Whisk
- Mandoline slicer or sharp knife
- Cutting board
- Measuring cups and spoons
- Aluminum foil
How to Make Hamburger Potato Casserole
- Brown the ground beef and onion, then season with garlic, salt, and pepper.
- Whisk together the creamy mushroom sauce.
- Thinly slice the potatoes.
- Layer the potatoes, beef, sauce, and cheese in the baking dish.
- Cover and bake until the potatoes are tender.
- Uncover, add the remaining cheese, and bake until melted and bubbly.
- Let the casserole rest before serving.
Make-Ahead Instructions
Hamburger potato casserole can be partially prepped ahead, but it is best assembled close to baking time because fresh sliced potatoes can discolor as they sit.
To prep ahead, cook the ground beef and onion mixture, whisk together the sauce, and shred the cheese. Store each component separately in the refrigerator for up to 24 hours. Slice the potatoes and assemble the casserole when you are ready to bake.
If you need to assemble the full casserole ahead of time, cover it tightly and refrigerate it for up to 12 hours. The potatoes may darken slightly, but the casserole will still bake properly. A cold casserole may need extra baking time, so check the potatoes carefully before adding the final layer of cheese.
Bake Covered or Uncovered?
Bake hamburger potato casserole covered first, then uncovered at the end.
The foil traps steam and helps the sliced potatoes soften. Without the covered baking time, the top can overbrown before the potatoes are tender.
Once the potatoes are tender, remove the foil and add the remaining cheese. The final uncovered bake melts the cheese and lets the sauce bubble around the edges.
Texture & Flavor Tips
- Slice the potatoes thinly and evenly. Thick potato slices are the most common reason this casserole needs extra baking time.
- Use a mandoline slicer if you have one. It makes the potato slices more consistent, which helps them cook evenly.
- Cover the baking dish tightly with foil during the first bake. This helps the potatoes steam and soften.
- Drain the beef well if there is excess grease. Too much grease can make the creamy sauce separate or feel heavy.
- Use freshly shredded sharp cheddar for the smoothest melt and best flavor.
- Let the casserole rest before serving. The sauce thickens slightly as it sits, which makes the layers easier to scoop.
Substitutions & Variations
- Ground beef: Lean ground beef works best, but ground turkey can be used for a lighter version. The flavor will be milder.
- Condensed soup: Cream of mushroom soup gives this casserole a classic savory flavor. Cream of celery can also work if you want a slightly different flavor.
- Cheese: Sharp cheddar gives the best flavor, but a cheddar blend or Colby Jack can be used for a milder casserole.
- Potatoes: Russet potatoes are best for this recipe because they soften nicely and hold up well in the layers. Yukon Gold potatoes can also work, but the texture will be a little creamier.
- Garnish: Green onions are optional, but they add freshness and color. Chopped parsley can also be used for a simple finish.
How to Know It’s Done
Hamburger potato casserole is done when the potatoes are tender, the sauce is bubbling around the edges, and the cheese on top is fully melted.
The best way to check is to insert a thin knife into several potato slices near the center of the casserole. The knife should slide through easily. If the potatoes are still firm, cover the dish again and keep baking.
After the potatoes are tender, the final uncovered bake is mostly for melting the cheese and finishing the top. Let the casserole rest for 10 to 15 minutes so the creamy sauce can settle before serving.
Storage & Reheating
- Refrigerator: Store leftovers in an airtight container for 3 to 4 days.
- Freezer: Freezing is not recommended for the best texture because the potatoes and creamy sauce can soften after thawing.
- Reheating: Microwave individual portions or reheat larger portions covered in a 325°F oven. Add a small splash of milk if the sauce has thickened.
FAQs
Why are my potatoes still firm?
The potato slices may be too thick, the casserole may not have been covered tightly enough, or it may simply need more time. Slice the potatoes about ⅛ inch thick and keep the dish tightly covered until the potatoes are tender.
Do I need to peel the potatoes?
For the smoothest texture, peel the russet potatoes. If you prefer a more rustic casserole, you can leave the skins on as long as the potatoes are scrubbed well, but the texture will be different.
Can I use pre-shredded cheese?
Pre-shredded cheese will work, but freshly shredded cheddar melts more smoothly and gives the casserole a better texture. If you have time, shred the cheese from a block.
Can I freeze hamburger potato casserole?
You can freeze it, but the potatoes and creamy sauce may soften after thawing. For best texture, this casserole is better made fresh or refrigerated as leftovers.
What should I serve with hamburger potato casserole?
Serve it with something fresh or green, such as green beans, roasted broccoli, a simple salad, peas, asparagus, or steamed vegetables. The casserole is rich and filling, so simple sides work best.
Hamburger Potato Casserole
Ingredients
Method
- Preheat the oven to 375°F. Lightly coat a 9 × 13-inch baking dish with nonstick cooking spray.
- Add the ground beef and diced onion to a large skillet. Cook over medium-high heat for 7–9 minutes, breaking the beef into crumbles, until the meat is browned and the onion is tender.
- Drain the excess grease. Stir in the garlic, salt, and black pepper and cook for 30 seconds. Remove the skillet from the heat.
- In a medium bowl, whisk together the condensed cream of mushroom soup, milk, Worcestershire sauce, and onion powder until smooth.
- Peel the potatoes and cut them into uniform slices approximately ⅛ inch thick. A mandoline slicer works best for creating evenly sized slices.
- Arrange half of the sliced potatoes in the prepared baking dish, overlapping them slightly as needed.
- Top the potatoes with half of the ground beef mixture, half of the soup mixture, and ¾ cup of the shredded cheddar.
- Repeat the layers with the remaining potatoes, ground beef, and soup mixture. Reserve the remaining 1¼ cups of cheese.
- Cover the baking dish tightly with aluminum foil. Bake for 60 minutes.
- Carefully remove the foil and test several potato slices with a thin knife. If the potatoes are still firm, cover the casserole again and bake for another 10–20 minutes, checking periodically.
- Once the potatoes are tender, uncover the casserole and sprinkle the remaining cheese evenly over the top.
- Bake uncovered for 10–15 minutes, until the cheese is completely melted and the sauce is bubbling around the edges.
- Let the casserole rest for 10–15 minutes before serving. Garnish with sliced green onions, if desired.
Notes
- Slice the potatoes about ⅛ inch thick so they bake evenly.
- Keep the casserole tightly covered until the potatoes are tender.
- Freshly shredded sharp cheddar gives the smoothest melt.
- Let the casserole rest for 10–15 minutes before serving.
