Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1      7 oz can      tuna -- water packed
     1/4  cup           American -- cheddar
     1/4  cup           Colby cheese
   1 1/2  tablespoons   sweet gherkins -- finely
     1/2  cup           celery -- chopped finely
     1/2  cup           skim milk mayonnaise -- >or<-
     1/2  cup           light mayonnaise
                        few strips green pepper

Preparation:

Drain tuna; flake with fork into small pieces. Cut cheese into 1/4" cubes. Combine tuna, cheese, gherkins, celery, and Skim Milk Mayonnaise; mix well. Cover bowl and chill 1 hour or longer. Serve on crisp lettuce, garnished with thin strips of green pepper. Source: The Art for Cooking for the Diabetic by Mary Abbott Hess, R.D., M.S. and Katharine Middleton