Cut the pork neck into bite-sized pieces.
Slice onion and green onion into thin strips.
Add cooking oil to a pan and stir-fry the pork neck.
Season the pork with salt and pepper.
Add the onion and green onion, then stir-fry together.
Add soy sauce, cooking wine, and sugar to season.
Place the pork and vegetables on top of the rice.
Sprinkle sesame seeds and chopped scallions on top as desired.