Slice meat into thin bite-size pieces, cutting across the grain. Combine with cornstarch,sherry, 1 tablespoon oil and the garlic. Marinate for 30 minutes. Prepare Lemon Ginger Sauce; set aside. Heat wok or skillet. Add remaining 1 tablespoon of oil. Stir fry the meat 2 to 3 minutes or just until cooked. Remove from pan; set aside. Add carrot and onion. Stir fry for 2 minutes. Add 1 tablespoon of bean liquid. Cover and steam for 2 minutes or until tender crisp. Add drained beans,mushrooms and Lemon Ginger Sauce. Bring to a boil; cook,stirring constantly, until thickened and translucent. Add meat; heat through. Serve over cooked rice,if desired.Makes 4 servings. LEMON GINGER SAUCE: Combine all ingredients; mix well.