Cut beef across grain, 1/4" slices, 1" long. Mix beef with next 5 ingredients and set aside. Cut broccoli tops into flowerets, 1" to 2" longer, 1/2" thick. Put 2 tablespoons oil in hot skillet, high heat. Add broccoli and stir-fry 2 minutes; remove and keep warm. Add remaining oil to skillet, then add ginger root.
Stir in beef mixture and stir-fry 2 minutes or until almost done. Add broccoli and bean sprouts and mix lightly. Serve at once with boiled white rice and/or dry Chinese noodles.