Cut the pork neck into bite-sized pieces.
Julienne the onion and green onion.
Heat cooking oil in a pan and stir-fry the pork neck.
When the pork is cooked, add the sliced onion and green onion.
Mix ssamjang and mayonnaise to make the sauce.
Add the sauce to the pan and stir-fry together.
Put rice in a bowl and top with the stir-fried ingredients.
Sprinkle with sesame seeds and drizzle sesame oil to taste.