SERVING SUGGESTION: Serve a big bowl of coleslaw on the side (use a ready-made mix and toss with low fat mayo and a little rice vinegar). VEGETARIAN: Eliminate the white button mushrooms from the recipe and grill some portabella mushrooms in place of flank steak. KOSHER: Make sure beef is certified kosher and use soy cheese or skip. GLUTEN FREE: Make sure soy sauce is gluten free. Use gluten free rolls. NUTRITION: Per serving: 501 Calories; 16g Fat; 36g Protein; 51g Carbohydrate; 3g Dietary Fiber; 64mg Cholesterol; 1372mg Sodium. Exchanges: 2 1/2 Grain(Starch); 4 Lean Meat; 1 1/2 Vegetable; 1 Fat; 1/2 Other Carbohydrates. Points: 13