Cut the chicken tenderloin into bite-sized pieces.
Shred the cabbage and green onion.
Beat the eggs and set aside.
In a bowl, combine the chicken, vegetables, eggs, okonomiyaki sauce, salt, and pepper.
Heat oil in a pan and pour in the mixture.
Cook on medium heat until both sides are golden brown.
Finish by topping with okonomiyaki sauce, mayonnaise, and bonito flakes.