2 lb. pkg. Ore-Ida hash browns
1 onion, diced
1 (8 oz.) stick Cheddar cheese, grated
1 stick butter, break into sm. pieces
1 (8 oz.) sour cream
1 can cream of chicken soup

Thaw potatoes. Spread in 9x13 inch pan. Combine remaining ingredients. Pour over and mix with potatoes. Bake at 350 degrees for 25-45 minutes.