Hash Brown Casserole - cooking recipe

Ingredients

1 large onion, chopped
1 can cream of chicken soup
1 Tbsp. melted butter
1 (8 oz.) carton sour cream
8 oz. grated Cheddar cheese
1 (2 lb.) bag frozen hash brown potatoes

Preparation

Butter a 9 x 13-inch casserole dish.
Mix well all ingredients, except potatoes, then add potatoes; mix well.
Place in casserole dish.
Bake at 350\u00b0 for 1 to 1 1/2 hours.
Serves 8 to 10 people.