Cut the thinly sliced pork belly, cabbage, and onion into bite-sized pieces.
Add cooking oil to a pan and stir-fry the pork belly.
Add onion and cabbage to the pork and continue stir-frying.
Season with salt and pepper.
Add rice and stir-fry, mixing everything well.
Adjust the final seasoning with soy sauce or oyster sauce.
Transfer to a plate and serve.