The Burger King or McDonalds or Kraze Burger (my favorite) would all be good.
then just go find their arrivals door and stand in front of it. Easy.
Usually so, but my wife arrived a few hours after I did recently and her exit was not at the expected doorway. I would be safe and pick an easy-to-find spot and have a snack (BTW, the Korean food court on the lower level isn't well known by most travellers, but is very cheap).