Cut the sliced pork belly and napa cabbage into bite-sized pieces.
Heat some cooking oil in a pan and stir-fry the sliced pork belly.
When the pork is about halfway cooked, add the napa cabbage and stir-fry together.
Season with soy sauce, minced garlic, and pepper.
Once the cabbage softens and the pork is fully cooked, finish and serve.