Soak the shredded pickled mustard greens for half an hour in advance, as they will absorb water and become larger and thicker after soaking.Clean them thoroughly and chop them finely, then add garlic,ginger.(If you like spicy food,you can add some chili peppers).Place these ingredients in a pot to stir-fry until ready for use.Cut the pork belly into thin slices (with skin and fat interspersed with lean meat).Place them in a pan without oil and fry until slightly golden.Arrange the prepared pickled mustard greens evenly on top of the meat slices.Turn the bowl containing the meat slices upside down over an empty bowl.Steam it in a steamer for about an hour, or steam it twice using the rice cooker lid if you prefer a stronger aroma.Enjoy the finished dish prepared by Sunshine Sister.See the finished product made by Sunshine Sister.