Finely chop the chicken breast, onion, and green onion.
Heat some cooking oil in a pan and stir-fry the chicken breast.
Add the onion and green onion, and sauté together.
Add the rice and stir-fry, mixing well.
Season with gochujang (Korean chili paste), soy sauce, minced garlic, and black pepper.
Once the ingredients are well combined, finish by drizzling sesame oil and sprinkling sesame seeds.