Cut the chicken breast into bite-sized pieces.
Julienne the onion and green onion.
Heat cooking oil in a pan and stir-fry the chicken breast.
Once the chicken breast is cooked, add the onion and green onion and stir-fry together.
Season with soy sauce, sugar, and pepper.
Place the stir-fried chicken breast and vegetables over rice.
Finish by sprinkling sesame seeds and crushed seaweed.