Cut the thinly sliced pork belly and vegetables into bite-sized pieces.
Add oil to a pan and stir-fry the pork belly.
When the meat is halfway cooked, add onion, green onion, chili peppers, and stir-fry together.
Season with soy sauce, red pepper powder, sugar, minced garlic, and other seasonings.
Continue to stir-fry over medium heat until all ingredients are fully cooked.
Transfer to a plate and finish by drizzling sesame oil and sprinkling sesame seeds on top.