2 lbs. hash browns, thawed
1/2 c. sour cream
1 can cream of chicken soup
2 c. Cheddar cheese, shredded
1/2 c. chopped onion (optional)
1/2 c. melted butter
1/2 tsp. salt
1/4 tsp. pepper
2 c. mashed corn flakes
1/4 c. butter

Mix all ingredients except corn flakes and 1/4 cup butter in a bowl. Place mixture in large casserole dish. Combine 1/4 cup butter and corn flakes. Spread on top of casserole. Bake 45 minutes at 350 degrees.