Nutritional Analysis: One serving (prepared with lean ground beef, reduced-sodium taco seasoning, low-fat tortilla chips, fat-free refried beans and reduced-fat cheddar cheese; calculated without toppings) equals 405 calories, 1,181 mg sodium, 47 mg cholesterol, 31 gm carbohydrate, 37 gm protein, 12 gm fat, 6 gm fiber. Diabetic Exchanges: 3-1/2 lean meat, 2 starch.