1 (2 lb.) frozen hash brown potatoes
1/2 c. chopped onion
1/2 c. melted butter, save half for top
10 oz. grated Cheddar cheese
1 can cream of chicken soup
1 c. sour cream
1 tsp. salt
1/2 tsp. pepper

Mix all ingredients well. Put into greased casserole. Sprinkle top well with corn flake crumbs. Drizzle 1/4 cup melted butter over crumbs. Bake at 350 degrees until brown and bubbly, about 1 hour.