Hash Brown Casserole

Ingredients

• 2 lb. hash browns, thawed
• 1/2 c. margarine, cut up
• 1 can cream of chicken soup
• 2 tsp. dried onion
• 1/2 c. sour cream
• 2 c. diced Velveeta cheese
• 1 c. crushed cornflakes
• 1/4 c. melted butter