2 lb. frozen hash browns, shredded
1/2 c. melted butter
1 can cream of mushroom soup
2 c. sour cream
1/2 c. chopped onion
2 c. shredded Cheddar cheese
salt and pepper

Defrost hash browns. Combine next 6 ingredients. Mix with hash browns. Place in greased casserole dish, 9 x 13, and bake at 350°F for 45 minutes.