Cut the chicken into bite-sized pieces.
Slice the onion, green onion, carrot, and cabbage.
Marinate the chicken with gochujang, soy sauce, minced garlic, chili powder, sugar, and sesame oil.
Heat oil in a pan and stir-fry the chicken.
Add the vegetables to the chicken and stir-fry together.
Serve the stir-fried chicken bulgogi over rice.