Cut the chicken thighs into bite-sized pieces.
Season with salt and pepper.
Heat cooking oil in a pan and cook the chicken thighs.
Add Korean spicy chicken sauce and stir-fry.
Prepare the lettuce and tomato.
Slice the bread in half and toast it.
Layer lettuce, tomato, and spicy chicken thighs on the bread.
Add mayonnaise or your preferred sauce.
Cover with the other piece of bread to finish.