Cut the pork neck into bite-sized pieces.
Julienne the cucumber.
Julienne the carrot and onion as well.
Season the pork neck with salt and pepper.
Heat cooking oil in a pan and grill the pork neck.
Put the rice in a bowl.
Top the rice with grilled pork neck, cucumber, carrot, and onion.
Finish by adding gochujang, sesame oil, and sesame seeds on top.