Cheesy Potato Casserole

2 pounds hash browns

1/2 cup onion, chopped

1/2 cup butter, melted

1 can cream of chicken soup

1 pint sour cream

1 tsp salt

1/4 tsp pepper

2 cups cheese, grated

Topping:

1/2 cup butter, melted

2 cups corn flakes, crushed

Mix together the first 8 ingredients place in casserole dish.  Mix topping ingredients and place on top of hash brown mixture.  Bake at 350 degrees for 45 minutes.