Ingredients
Equipment
Method
Prep and preheat
- Preheat oven to 375°F and grease a 9x13 baking dish.
- Thinly slice the peeled russet potatoes and dice the onion.
Cook the beef mixture
- Brown ground beef with diced onion in a skillet over medium heat, then drain excess fat.
- Stir in minced garlic and cook for 1 more minute, then remove from heat.
Make the creamy mushroom sauce
- Mix cream of mushroom soup, sour cream, beef broth, garlic powder, onion powder, smoked paprika, salt, and black pepper in a bowl until smooth.
Assemble and bake
- Layer half the sliced potatoes in the bottom of the greased dish.
- Spoon on half the seasoned ground beef mixture, spreading it into an even layer.
- Pour half the soup mixture over the beef, then repeat with the remaining potatoes, beef, and soup mixture.
- Cover tightly with foil and bake at 375°F for 40 minutes, until the potatoes are tender.
Cheddar topping
- Remove the foil, sprinkle shredded sharp cheddar cheese over the top, and bake uncovered at 375°F for 15 more minutes.
- Bake until the cheese is golden and bubbly, then let the casserole rest briefly before serving.
Notes
For clean, even layers, aim for uniformly thin potato slices so they finish tender at the same time. Store leftovers in the refrigerator up to 3 days, reheating in the oven or microwave until hot throughout; freeze baked casserole up to 2 months (thaw overnight in the fridge before reheating). For a lighter version, use low-fat sour cream and reduced-fat cheddar, keeping the baking time the same.
