Hamburger Rice Cheese Casserole

Ingredients

• 1 lb ground beef
• 1/2 medium onion, diced
• 1 can(s) cream of chicken soup
• 1 can(s) cream of mushroom soup
• 1 c instant rice
• 1 c shredded cheddar cheese
• 1/2 c american cheese chunks
• 1 can(s) corn
• salt & pepper to taste