Nutritional Analysis: 1 stuffed tomato (prepared with reduced-fat mayonnaise and water-packed tuna; calculated without cashews) equals 241 calories, 11 g fat (2 g saturated fat), 36 mg cholesterol, 746 mg sodium, 12 g carbohydrate, 2 g fiber, 24 g protein. Diabetic Exchanges: 3 lean meat, 2 vegetable, 1 fat.