In a small bowl, combine the sauce ingredients and set aside. Later, we will add some of the pasta cooking water to thin out the sauce.
Heat a wok of medium-high heat. Add the oil and swirl it around the wok. Add the ginger and stir-fry for 30 seconds.
Add the ground pork and stir-fry for 2 minutes until no longer pink, using your spatula to break up the pork into small pieces
Add the Sichuan preserved mustard greens and stir-fry for 30 seconds until hot.
Add the Shaoxing cooking wine, sweet bean sauce, and dark soy sauce. Stir fry for 1 minute until the Shaoxing wine has evaporated and you start to hear sizzling. Remove from the heat.
Boil the noodles according to the package directions. Scoop out 2 tablespoons of the pasta water and add it to the sauce mixture from the first step.
In two large bowls, divide the drained noodles, sauce mixture, pork topping, and scallions. Mix and enjoy! If you find the sauce is too thick/pastey, just add a little bit of water or chili oil to thin it out.