Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   2      tablespoons   butter
   4      teaspoons     all-purpose flour
     1/8  teaspoon      garlic powder
     3/4  cup           milk
   6      ounces        sharp American cheese -- shredded  (1.5 cups)
   1      package       cream cheese (3 oz)
   3      packages      frozen whole kernel corn (10 oz each) -- thawed
   3      ounces        diced ham

Preparation:

In a large sauce pan, melt butter. Stir in flour and garlic powder. Add milk all at once. Cook and stir over medium heat until thickened and bubbly. Stir in cheeses. Cook and stir over medium heat until melted. Stir in the corn and ham. Transfer mixture to a 2-quart casserole dish. Bake at 350F for 45 minutes