Cut the chicken breast into bite-sized pieces.
Slice the onion, bell pepper, and carrot into thin strips.
Add cooking oil to a frying pan and stir-fry the chicken breast.
Add the vegetables and stir-fry together.
Put rice into a 1-liter container.
Place the stir-fried chicken breast and vegetables on top of the rice.
Finish by drizzling soy sauce, sesame oil, and sprinkling sesame seeds.