Nutritional Analysis: One serving (prepared with reduced-sodium taco seasoning, fat-free tortillas, reduced-fat cheese and fat-free sour cream) equals 339 calories, 10 g fat (0 saturated fat), 57 mg cholesterol, 580 mg sodium, 31 g carbohydrate, 2 g fiber, 28 g protein. Diabetic Exchanges: 3 lean meat, 2 starch, 1 vegetable.