Cut the chicken breast and vegetables into bite-sized pieces.
Heat oil in a preheated pan, then stir-fry the chicken breast.
When the chicken is cooked, add onion, carrot, and bell pepper, then stir-fry.
Add the charcoal-grilled marinade sauce and stir well to combine.
Add the rice and mix evenly while stir-frying.
Season with salt and pepper to taste.
Transfer to a plate and garnish with green onions, sesame seeds, or other toppings.