Diabetic Exchanges: One serving (prepared with margarine, skim milk, part-skim mozzarella and low-fat ham) equals 2 starch, 2 meat, 1 vegetable, 1 fat; also, 358 calories, 745 mg sodium, 34 mg cholesterol, 38 gm carbohydrate, 24 gm protein, 13 gm fat.