Chop the kimchi and onion into small pieces.
Heat cooking oil in a pan and stir-fry the pork.
When the pork is cooked, add the kimchi and onion, and stir-fry together.
Add the rice and stir-fry so all the ingredients mix well.
Season with gochujang (red chili paste) and soy sauce.
Finish by adding sesame oil and sesame seeds.