Nutritional Facts 1 fajita (calculated without cheese and sour cream) equals 327 calories, 11 g fat (2 g saturated fat), 63 mg cholesterol, 299 mg sodium, 29 g carbohydrate, 1 g fiber, 28 g protein. Diabetic Exchanges: 3 lean meat, 1-1/2 starch, 1 vegetable, 1/2 fat.