Potato Casserole - cooking recipe

Ingredients

1 (32 oz.) pkg. frozen hash brown potatoes, slightly thawed
1 (16 oz.) carton sour cream
1 can cream of chicken soup
salt and pepper
1 stick margarine or butter, melted
1/2 c. chopped onion (optional)
8 to 10 oz. cheese, grated

Preparation

Mix all ingredients.
Bake 1 hour at 375\u00b0 or until bubbly throughout.