i already had so much nice and well prepared food. and it is not so expensive as i feared.
for lunch i go to a diner near iamas. riceballs with sidedish + miso soup + coffee = 750yen ≈ €4,5 ≈ 42sek
also i had a lot of okonomiyaki of course. one of my favourite japanese dishes and for my welcoming party the cmc/iamas staff cooked okonomiyaki specially for me. very nice of them.
it's just slightly problematic to find vegetarian food. so i do eat seafood and fish while i'm here. also i wouldn't want to miss out on the excellent sushi.