Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1      pound         beef flank steak -- sliced thin across
                        grain
   1      tablespoon    light soy sauce
   1      tablespoon    dry sherry
   1      pinch         sugar
                        black pepper -- freshly
                        to taste
   2      tablespoons   oyster sauce
   3      tablespoons   peanut oil
     1/2  teaspoon      sesame oil
   2                    green onions -- slice
                        style
     1/2  head          iceberg lettuce -- shredded
     1/8  cup           chicken stock

Preparation:

Marinate the beef in the soy sauce, wine, sugar, black pepper, and oyster sauce for 15 minutes. Heat a wok and add 1 1/2 T of the peanut oil. Chow the meat quickly on high heat, about 3 minutes. Remove from the pan to a serving bowl. Heat the wok again and add another 1 1/2 T peanut oil. Add the sesame oil and green onions, and chow for a moment. Add the lettuce and return the meat to the wok. Add the chicken stock and cook for a moment while a sauce forms.