Quick Super Bowl Dip!

1 (16 ounce) can refried beans, 2 cups shredded Cheddar cheese, 1 (1 ounce) package ranch dressing mix, 1 cup sour cream: In a small saucepan, combine beans, cheese, ranch dressing mix, and sour cream. Heat the mixture over a medium heat, stir until the ingredients are well blended and warm.