Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1      package       frozen shredded hash brown potatoes (32 -- thawed (32 oz.)
   2      cans          potato soup (10 oz.) -- undiluted
   2      cartons       commercial sour cream (8 oz.)
   2      cups          shredded sharp Cheddar cheese (8 oz.)
   1      cup           grated Parmesan cheese

Preparation:

Combine all ingredients, stirring well; spoon into a greased 13 x 9 x 2 inch baking dish. Bake at 350 F for 40 minutes.