1. Cut steak into thin strips. Place in a large bowl with sherry, sesame oil, gingerroot, and garlic. Let marinate 15 minutes.
2. Cut green onions into 1/2-inch pieces, and trim asparagus and cut into 1-inch lengths. Heat wok over medium-high heat and add safflower oil. Stir-fry green onions, asparagus, and bell pepper for 2 minutes, then remove to a platter and keep warm in oven.
3. Add steak and marinade to wok and stir-fry for 3 minutes. In a small bowl combine oyster sauce and arrowroot. Add to steak and cook for 1 minute. Add vegetable mixture and cook for 1 minute, stirring constantly. Toss in snow peas, cover wok, and cook for 1 minute. Serve immediately.
Recipe By : the California Culinary Academy