Potato Sausage Casserole

Here's one Jason found on the internet that we enjoy:

1 lb. bulk sausage
1 can cream of mushroom soup
3/4 cup milk
1/2 cup chopped onion
1/2 tsp. salt
1/4 tsp. pepper
3 cups sliced peeled raw potatoes
2 cups shredded Cheddar cheese
chopped fresh parsley, optional

Brown sausage; drain and set aside. Combine soup, milk, onion, salt, and pepper. In a greased 2 quart casserole, layer half of the potatoes, half of the soup mixture, and half of the sausage. Repeat, ending with sausage. Cover and bake at 350 for 1 hour or until potatoes are tender. Sprinkle with cheese. Return to oven, uncovered, for 2 to 3 minutes or until cheese melts. Garnish with parsley if desired.