Cut the chicken into bite-sized pieces.
Slice the onion, carrot, and green onion.
Season the chicken with gochujang (Korean chili paste), soy sauce, minced garlic, sugar, and chili powder.
Heat cooking oil in a pan and stir-fry the onion, carrot, and green onion.
Add the seasoned chicken to the pan and cook over medium heat.
Place rice in a bowl and top with the cooked Dak-galbi.
Generously add mozzarella cheese, cover with a lid, and melt the cheese.