4.Slice the potatoes:
Peel the potatoes if desired, then slice them into thin, even slices about ¼-inch thick. Using a mandoline slicer can help achieve consistent slices quickly.
5.Assemble the casserole layers:
- Start by layering a single even layer of potato slices on the bottom of the baking dish.
- Sprinkle lightly with salt and pepper to season.
- Spread about one-third of the cooked ground beef and onion mixture evenly over the potatoes.
- Sprinkle about one-third of the shredded cheddar cheese over the meat.
Repeat these layers two more times: potatoes, salt and pepper, beef mixture, and cheese. Your final top layer should be the remaining shredded cheese, which will melt and form a golden crust.
6.Prepare the creamy cheese sauce:
In a medium bowl, whisk together the canned cheddar cheese soup, evaporated milk, and regular milk until smooth. Taste and add a pinch more salt and pepper if you like.
7.Pour the sauce:
Slowly pour the cheese sauce evenly over the layered casserole. The sauce will seep between the layers, keeping the potatoes tender and cheesy as they bake.
8.Cover and bake:
Cover the casserole dish tightly with aluminum foil to trap the steam and help the potatoes cook thoroughly. Place it in the preheated oven and bake for about 1 hour.
9.Uncover for finishing touch:
After an hour, remove the foil and bake uncovered for an additional 15 minutes. This will allow the cheese on top to turn golden brown and bubbly, creating a delicious crust.
10.Check the potatoes:
Depending on how thinly your potatoes are sliced, you may need to bake a bit longer to ensure they are fully tender. Test by poking a slice with a fork — it should slide in easily.
Serving Suggestions and Tips:
- Make ahead: You can assemble this casserole the night before, keep it covered in the fridge, and bake it fresh the next day. Just add a few extra minutes to the baking time if chilled.
- Add herbs: For extra flavor, sprinkle some chopped fresh parsley or thyme on top before serving.
- Customize: Mix in other veggies like bell peppers, mushrooms, or spinach in the beef mixture for added nutrition and variety.
- Cheese variety: Try a combination of sharp cheddar with mozzarella or Monterey Jack for a different cheesy twist.
- Side dishes: Pair with a crisp green salad or steamed veggies for a balanced meal.
Enjoy Your Meal!
Once out of the oven, let the casserole rest for 5–10 minutes before serving. This allows it to set a bit and makes it easier to cut neat slices. Whether you’re feeding a hungry family or looking for a comforting, cheesy dinner, this Cheesy Hamburger Potato Casserole is guaranteed to be a hit. Dive into each bite of savory beef, creamy potatoes, and gooey melted cheese — pure comfort food at its best!