Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1 1/2  pounds        ground round
     1/4  cup           parmesan cheese
     1/4  cup           catsup
     1/2  cup           bread crumbs
     1/4  cup           milk
   1                    egg
                        ***SWEET & SOUR SAUCE***
     3/4  cup           water
   3      tablespoons   brown sugar
   3      tablespoons   catsup
   4      teaspoons     cornstarch
     1/4  cup           vinegar
     1/4  cup           orange juice
   1      tablespoon    lemon juice
                        ***REMAINING INGREDIENTS***
   2      tablespoons   oil
   1      clove         garlic
   2      tablespoons   scallions -- chopped
   1      teaspoon      ginger root -- peeled, grated
   2      tablespoons   oil
   2                    green peppers -- diced
   1      large         onion -- diced
   1                    tomato -- cut in eighths
   8      ounces        pineapple chunks in juice -- drained

Preparation:

Make small meatballs and set aside. Combine sauce ingredients and set aside. Add oil to hot wok. Swirl. Stir fry garlic, scallions and ginger for 30 seconds. Add meat balls and gently stir fry for about 1 minute. Remove ingredients from wok. and set aside. Wipe wok clean. Reheat wok, add oil and stir fry green peppers, onion and tomato in consecutive order, stirring 30 seconds after each addition. Push vegetables to side of wok. Stir sweet and sour sauce and pour into center of wok, stirring until thickened and bubbly. Return meatballs to wok along with pineapple. Heat thoroughly and serve.