Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
                        Cornstarch
   3      tablespoon    soy sauce
                        Sugar
                        Pepper
   1      pound         sirloin tip -- sliced 1/8 in.
                        Oil (Peanut)
   1                    onion -- sliced
   2                    green peppers -- sliced
   2      stalks        celery -- sliced
     1/4  cup           cold water
     1/2  teaspoon      MSG
  34                    a tomatoes -- wedges
  34                    a green onions -- 2-in. strips

Preparation:

Mix 2 teaspoons cornstarch, soy sauce, 1 teaspoon sugar, pinch of salt and pepper; add sirloin. Marinate for 10 to 15 minutes. Drain sirloin; fry in small amount of hot oil over high heat until meat loses red color. Push to outer edge of pan. Add small amount of oil; cook onion, green peppers and celery for 5 minutes. Make paste of 2 tablespoons cornstarch and water; stir in 1 teaspoon sugar, msg and salt and pepper to taste. Add to sirloin mixture; cook stirring, until sauce is clear. Add tomatoes and green onions, remove from heat. Serve.