Nutritional Analysis: One serving (prepared with fat-free mayonnaise and fat-free milk and without tomatoes) equals 144 calories, 4 g fat (0 saturated fat), 14 mg cholesterol, 318 mg sodium, 18 g carbohydrate, 1 g fiber, 8 g protein. Diabetic Exchanges: 1 starch, 1 vegetable, 1 fat.