Sausage Potato Casserole

This was delicious from Allrecipes.  It's a creamy potato and sausage dish all in one.

1 pound bulk pork sausage
1 (10.75 ounce) can condensed cream of mushroom soup, undiluted
3/4 cup milk
1/4 cup chopped onion
1/2 teaspoon salt
1/4 teaspoon pepper
3 cups thinly sliced peeled potatoes
1 cup shredded Cheddar cheese
Directions
1.In a large skillet, cook sausage over medium heat until no longer pink; drain. In a bowl, combine the soup, milk, onion, salt and pepper. In an ungreased 11-in. x 7-in. x 2-in. baking dish, layer half the potatoes, soup mixture and sausage; repeat layers.
2.Cover and bake at 350 degrees F for 1-1/2 hours or until the potatoes are tender. Uncover and sprinkle with cheese. Bake 5 minutes longer or until cheese is melted.