Hash Brown Casserole

Ingredients

• 1 (2 lb.) pkg. frozen hash browns, thawed
• 1 can cream of chicken soup
• 2 c. (16 oz.) sour cream
• 2 c. grated Cheddar cheese
• 1 tsp. salt
• 1/4 tsp. pepper
• 1/4 c. melted butter
• 1/2 c. chopped onion