Faux Cracker barrel casserole

Copycat Cracker Barrel Hashbrown Casserole via  Cincy Shopper
1 bag (about 30 oz) Frozen Hash Browns, thawed
1 stick Butter, melted
1 can Cream of Chicken Soup
1 small Onion, chopped
8 oz Shredded Cheddar Cheese
1 tsp salt
1/2 tsp Black Pepper
1 cup Sour Cream

Grease 9x11" baking dish. Preheat oven to 350. In a bowl mix onion, soup, pepper and all but 1c cheese. Add sour cream and mix well.Add hash browns and melted butter. Mix well. Transfer to prepared dish. Bake 45-55 min til bubbly.