1 onion
1 lb. hamburger
4 coarsely diced yellow squash
1 can stewed tomatoes
1 can chopped green chilies
1/2 lb. Velveeta, cubed
salt and pepper to taste

Brown onion with hamburger. Add remaining ingredients. Mix and place into casserole dish.

Bake at 350°F approximately 30 minutes or until squash is done. Top with cheese while hot.