Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
4         Ounces        Lean cooked ham or prosciutto, julienned
2         medium        Potatoes, cooked, peeled julienned
4         Ounces        Emmenthaler, Jarlsberg or Gruyere cheese, julienned
1         medium        tart green apple, peeled, cored, julienned
1         small         Red onion, finely sliced
1/2       cup           mayonnaise
                        Salt and pepper

Preparation:

Combine the ham, potatoes, cheese, apple and onion in a bowl, add the mayonnaise, salt and pepper, toss gently but thoroughly. Adjust seasoning, serve chilled.