1 (16 oz.) carton sour cream
1 (1 lb.) pkg. frozen hash browns, thawed
1 can cream of chicken soup
onion to taste, diced
8 oz. grated Cheddar cheese
1 stick butter, melted

Mix all ingredients and put into an oblong greased casserole dish.

Bake at 350°F for 1 hour or until potatoes are done.