Potato Casserole - cooking recipe

Ingredients

1 small carton sour cream
1 can mushroom soup
1/2 stick butter
1 small onion, chopped
10 oz. grated Cheddar cheese (Colby Jack)
6 to 7 medium potatoes or 1 pkg. Mr. Deli hash browns

Preparation

Mix all ingredients together and bake it at 350\u00b0 until potatoes are tender.