3/4 lb Beef top round steak,

           -boneless steak
  1 1/2 c  Broccoli, fresh, thin sliced

      1 x  Carrot, small, thin sliced

      1 x  Onion, small, thin sliced

    1/2 x  Green pepper

      1 T  Oil, cooking

      8 x  Pea pods, halved crosswise

      6 x  Mushrooms, thin sliced

      1 x  Tomato, small, chopped

      3 T  Soy sauce

  1 1/2 t  Cornstarch

      4 x  Pita bread rounds, halved

  Thinly slice beef into bite-size strips.  Spray a wok or large skillet
  with nonstick spray coating.  Heat wok or skillet over high heat.  Add
  broccoli, carrot, onion, green pepper; stir-fry for 7 minutes.  Add
  pea pods, mushrooms, and tomatoe; stir-fry for 2 minutes.  Remove
  vegetables.  Add cooking oil; heat over high heat.  Stir-fry beef in hot
  oil 3 minutes.  Combine 1/4 cup cold water and soy sauce; blend in
  cornstarch.  Add to wok or skillet.  Cook and stir till bubbly.  Return
  vegetables to wok; heat through. Spoon mixture into halved pita bread
  rounds.