Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1      pound         flank steak -- diagonally sliced
                        Marinade:
     1/4  cup           soy sauce
   2      tablespoons   dry sherry
   1      teaspoon      sugar
   2      teaspoons     cornstarch
     1/4  cup           water
   2      tablespoons   oil
   4      cloves        garlic -- chopped
   2      teaspoons     ginger root -- peeled, grated
   2                    scallions -- chopped
   2      tablespoons   oil
   1      large         onion
   2                    green peppers -- sliced

Preparation:

Marinate steak for 15 minutes or more. Add oil to hot wok. Swirl and stir fry garlic, ginger and scallions for 30 seconds. WSith slotted spoon, reserving the marinade, add half the steak and stir fry for 3 minutes. Remove and set aside. Repeat with remaining steak. Add oil and stir fry onion and green peppers for 2 minutes. Push vegetables to sides of wok. Add marinade to center of wok and stir until thickened and bubbly. Blend in vegetables, add seak and heat thoroughly.