Preheat oven to 325.
Boil potatoes until fork tender and drain.
Place all ingredients into a mixing bowl except the cheddar cheese.
With an electric mixer blend until smooth.
Spoon into a greased 12 x 8 baking dish.
Cover and bake for 30-40 minutes.
Uncover and sprinkle with cheese. Bake for 5-10 minutes or until cheese is melted.