Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
  10      cups          thinly sliced yukon potatoes
   1      can           cream of mushroom soup -- 10-1/2 ounce can
     1/4  cup           finely chopped onion
   1      cup           milk
   1      stick         butter or margarine -- melted
   2      cups          grated cheddar cheese
     1/2  teaspoon      salt
     1/2  teaspoon      pepper

Preparation:

Spread half of the sliced potatoes in the bottom of a greased baking dish. In a medium bowl, combine remaining ingredients (except potatoes) and pour half the mixture over the first layer of potatoes. Repeat layers of potatoes and mixture. Cover and bake at 350 degrees for 1 hour. Uncover and bake 30 to 45 minutes longer.