Heat the wok until smoking and add the oil. Add the garlic and ginger and stir fry for 5 seconds then add the onion/leek. Stir fry for one minute before adding the garlic and ginger and quickly deglaze the wok with Shaoxing rice wine.
Add the chicken/veg stock, Hoisin sauce and light soy sauce. When boiling, add the greens and shredded meat.
Stir the cooked noodles through and serve