lunch boxes sold at the station and train are called "Eikiben" in Japan.
Eikiben has various seasonal ingredients, such as lunch boxes made from local specialties.
The Japanese loved Eikiben when train moving.
There seems to be a decrease in the number of companies that sell Eirben compared to the old days, but still many core fans.
I would like you to eat when you come to Japan.
The shop of Eikiben in Shin-Osaka, "Ekiben-nigiwai", has more than 100 types of eirigens, so you can find your favorite scallops.