Cut the thinly sliced pork belly and onion into bite-sized pieces.
Add a little oil to a pan and stir-fry the pork belly.
Once the pork belly is cooked, add the onion and stir-fry together.
Season with soy sauce, sugar, minced garlic, and pepper.
Place the stir-fried ingredients on top of rice.
Finish by sprinkling green onion and sesame seeds to taste.