Since I had a 4 hour transit in Narita Airport, of course, Japanese Food. I needed a hot one since it would increase my energy for almost another almost 20 hours till the destination.
Here were udon that we (I and others from my company) had at "TATSU" in Terminal1
1) Wakame Udon -- Hot Udon with Japanese Seaweed
2) Kitsune Udon -- Hot Udon with Fried Tofu
3) Tempura Udon -- Hot Udon wth Fried Shrimp
Even I feel that Udon is not freshly made (instant), I was appreciated it very much since I thought of another long hours from Tokyo to Chicago in plane.