Hash Brown Casserole

Alright, this is nothing fancy, but everyone loves it!  Just thought I would post this since I am planning a big breakfast, and this will be served!  :)

1 (2 lbs.) package souther style hash browns - THAWED
1/2 cup butter
1/2-1 cup chopped onions
2 (10.75 oz) cans, cream of onion and/or cream of potato soup
1 cup sour cream
2 cups shredded cheddar cheese
1/2 tsp. salt
1/4 tsp. ground black pepper, or white pepper.

Optional Topping:
2 cups crushed cornflakes
1/2 cup melted butter

Saute onion in butter until soft. In large bowl, combine potatoes, soup, sour cream, cheese, salt and pepper, and onion/butter mixture. Place in a greased 9x13 pan.

For topping: Combine cornflakes with melted butter. Sprinkle on top of potato mixture.

Cover with foil, bake at 350 for 45 minutes to one hour. Remove foil last 15 minutes of baking time.

*This can be assembled one day ahead. Take out of fridge at least one hour before baking, and it may take longer to bake.