Cut the jokbal into bite-sized pieces.
Slice the onion and green onion thinly.
Heat oil in a pan and sauté the onion and green onion.
Add the jokbal, then stir-fry with gochujang, gochugaru, soy sauce, minced garlic, sugar, and sesame oil.
Place the spicy jokbal over rice.
Finish by garnishing with sesame seeds and chopped green onion.