Marinate shredded pork with all the marinating sauce in a small bowl. Stir for several minutes until well combined.
Heat up around 1 tablespoon of cooking oil in wok; fry shredded pork until no more pink. Add pickled mustard greens and chili peppers. Stir fry for several minutes.Transfer to a bowl.
Cook noodles according to the instructions and then drain. Boil pork stock too.
Place the noodles in the serving bowls and then pour over pork stock; add shredded pork and mustard greens. Sprinkle chopped green onion, coriander and drop 3 or 4 drops of sesame oil on each serving bowl.