2 cans mushroom soup
1/2 c. milk
8 c. thinly sliced potatoes
1 c. thinly sliced onion
2 1/2 c. shredded cheese
2 tbsp. butter
Salt to taste

Combine soup and milk. Arrange alternate layers of potatoes, onion and soup. Put into 13 x 9 x 2 inch pan. Dot with butter. Cover with cheese. Cover and bake at 375 degrees for 1 hour. Uncover and bake 15 minutes more. Makes about 8 cups.