
This hearty ground beef and potato casserole is the ultimate easy weeknight dinner, loaded with savory beef, tender potatoes, and melted cheese in every comforting bite.

Some dinners are just built for the weeknight grind. This ground beef and potato casserole is exactly that dish. It is warm, filling, deeply savory, and requires almost no fuss to pull together. If you have ever stared into the fridge at 5pm wondering how to turn a pound and a half of ground beef into something the whole family will actually want to eat, this is your answer.
Think of it as the love child of a classic beef casserole and a loaded baked potato. Layers of thinly sliced russet potatoes, seasoned ground beef, and a creamy mushroom sauce are blanketed under a golden, bubbling crust of melted sharp cheddar. It is hearty, satisfying, and absolutely one of those easy casserole recipes you will bookmark and return to again and again.
Using the right kitchen tools genuinely speeds this recipe up, and a sharp mandoline slicer makes slicing potatoes evenly a total breeze, which means more consistent cooking and better layers. A heavy oven-safe skillet also lets you brown the beef and go straight to the oven without extra dishes.
There are hundreds of beef recipes for dinner out there, but this one earns its place at the top for a few key reasons:
Chef's Tip: Slice your potatoes as thin and evenly as possible, ideally around a quarter inch thick. This ensures they cook all the way through without turning mushy. A mandoline slicer makes this nearly effortless.
The secret to a great beef casserole recipe is all in the layering. Start with a solid base of seasoned potatoes, then pile on the browned, spiced ground beef, a shower of cheddar, another round of potatoes, and finally that luscious cream sauce that soaks down through every single layer as it bakes.
Do not skip the step of covering the dish with foil for the first part of baking. This traps steam and essentially braises the potatoes from below, getting them tender before the cheese goes on top to broil into that gorgeous golden crust.
The seasoning blend here matters. Smoked paprika adds a subtle depth that makes this taste far more complex than a simple beef dishes recipe has any right to. Garlic powder, salt, and fresh cracked pepper round everything out beautifully.
Warning: Make sure to drain the fat from the browned beef before assembling. Excess grease will make the sauce too oily and can prevent the potatoes from absorbing all those delicious flavors.
This recipe is wonderfully flexible, which is part of what makes it such a reliable go-to among fast dinners. Here are a few easy variations worth trying:
Ready to dig in? Here is the full step-by-step recipe:

This hearty ground beef and potato casserole is the ultimate easy weeknight dinner, loaded with savory beef, tender potatoes, and melted cheese in every comforting bite.
Preheat your oven to 375 degrees F (190 degrees C). Lightly grease a 9x13 inch baking dish with cooking spray or butter.
Heat olive oil in a large skillet over medium-high heat. Add the diced onion and cook for 3 to 4 minutes until softened. Add the minced garlic and cook for another 30 seconds until fragrant.
Add the ground beef to the skillet. Break it apart with a wooden spoon and cook until fully browned, about 6 to 8 minutes. Drain excess fat and return the skillet to the heat.
Season the beef with smoked paprika, garlic powder, salt, and black pepper. Stir well to combine.
In a medium bowl, whisk together the cream of mushroom soup, beef broth, and sour cream until smooth.
Arrange half of the sliced potatoes in an even layer across the bottom of the prepared baking dish. Season lightly with a pinch of salt and pepper.
Spread the seasoned ground beef mixture evenly over the potato layer. Sprinkle half the shredded cheddar cheese over the beef.
Layer the remaining potato slices on top, then pour the cream of mushroom sauce evenly over everything, making sure it seeps into the edges and corners.
Cover the baking dish tightly with aluminum foil and bake for 35 minutes.
Remove the foil, sprinkle the remaining cheddar cheese over the top, and return the dish to the oven uncovered. Bake for an additional 10 to 15 minutes until the cheese is bubbly and golden and the potatoes are fork-tender.
Let the casserole rest for 5 to 10 minutes before serving. Garnish with fresh parsley and serve hot.
This casserole is a complete meal on its own, but a simple green salad or some steamed broccoli on the side rounds it out nicely. For a proper comfort food spread, serve it alongside warm crusty bread to soak up every last drop of that creamy sauce.
Leftovers keep beautifully in the fridge for up to four days and reheat well in both the microwave and oven. This also makes it one of those easy casserole recipes worth doubling so you have a ready-made dinner waiting for you later in the week. Your future self will thank you.