Cheesy Mushroom Burger Potato Bake

Preheat the oven to 350°F (175°C).

In a large skillet, cook and stir the ground beef over medium-high heat until browned and crumbly; drain and discard grease.

In a medium bowl, mix the condensed soup, milk, onion, salt, and pepper until combined.

Layer the potatoes, soup mixture, and cooked ground beef alternately in a 2-quart baking dish.

Bake until the potatoes are tender, about 1 to 1.5 hours. Top with Cheddar cheese and continue baking until melted.

Let it rest for 5 minutes before serving.