Microwave Cheese Dip
["1 (1 lb.) pkg. Velveeta Mild Mexican cheese, cut in 1 inch cubes", "1 can stewed tomatoes, drained and chopped", "1/4 c. chopped onions", "2 Tbsp. butter or margarine"]
["Microwave butter until melted.", "Stir in onion.", "Microwave for 2 minutes or until onion is tender.", "Add cheese and tomatoes. Microwave 5 minutes or until cheese melts.", "Stir once during cooking time.", "Serve with tortilla chips."]
["cheese", "tomatoes", "onions", "butter"]