Cut the king oyster mushrooms and chicken into bite-sized pieces.
Slice onions, green onions, carrots, and other vegetables into easy-to-eat pieces.
Heat cooking oil in a pan and stir-fry the chicken.
When the chicken is halfway cooked, add the king oyster mushrooms and vegetables and stir-fry together.
Season with soy sauce, red pepper flakes, minced garlic, and sugar.
Stir-fry over high heat until the ingredients are cooked through and the seasoning is well absorbed.
Finish by drizzling sesame oil and sprinkling sesame seeds.