Mix sliced beef with soy sauce, cornstarch, sherry, sugar, and M.S.G. Set aside. Remove stems and strings from pea pods. Rinse the pea pods and pat dry with a towel. Put 2 Tbsp. oil in hot skillet over a high flame. Add salt first and then pea pods, stirring occasionally until the pods turn darker green (less than 1 minute). Remove pods and spread out on a plate. In the same skillet, add the remaining 2 Tbsp. oil and ginger root. Stir in beef mixture and turn constantly until the beef is almost cooked (not over 2 minutes). Add pea pods and mix thoroughly. For crispness do not overcook. Serve immediately