Normally people wouldn't travel to the airport terminal for food. If you are at a terminal, you usually would not know what's good to eat there because you do not travel to the same terminal often. Well, if you are stuck at Narita Airport Terminal 1 and are feeling Chinese. I recommend the Tang Dynasty Do-Sho-men.
Its hand sliced noodles with a variety of soup choices. Both spicy and non-spicy varieties available.
Note that the photos below were taken with very hungry shaky hands! Will try to update the next time I'm there.
Taken with Camera+ on iPhone.