2 lb. hash browns, thawed
1 stick melted butter
1/4 c. chopped onion
1 can cream of chicken soup
1 carton sour cream
1 (8 to 10 oz.) pkg. grated Cheddar cheese

Mix all together. Put in a 13 x 9 dish. Bake covered at 350 degrees for 1 hour. Can be made ahead and frozen. Great for picnics or family gatherings.