2 (10 oz.) pkgs. frozen hash browns, defrosted
1/2 c. melted butter
1/2 c. chopped onion
1 tsp. salt
1/2 tsp. pepper
1 pt. sour cream
1 can cream of chicken soup
2 c. shredded sharp cheddar cheese

2 c. crushed corn flakes
1/4 c. melted butter

Place all ingredients except topping in a large bowl and mix together well. Place in a 3 quart casserole and bake at 350 degrees for 45 to 60 minutes. During last 20 minutes of baking time, add topping.