Heat oil in large pan to 350 F, place chicken, onion and garlic in and let sizzle for 30 seconds.
Flip chicken, let cook 20 seconds, separate slices and mix in onion/garlic.
Finish cooking chicken then add and mix in teriyaki sauce.
Spread slaw and cucumbers on bottom of roll then fill with chicken mixture.
Arrange cilantro and jalapeno on top and serve warm.