Cut the chicken breast into bite-sized pieces.
Finely chop the kimchi and onion.
Add cooking oil to a pan and stir-fry the chicken breast.
Once the chicken breast is cooked, add the kimchi and onion and stir-fry together.
Add rice and stir-fry, mixing evenly.
Season with soy sauce and pepper as needed.
Serve the finished fried rice in a bowl.