Ha ha, depends how you define average! Well, I thought it was a touch on the expensive side, but not excessively so. From memory, it was around 20 euro total.
However, I was happy to pay that as I was starving and exhausted, and not willing to go searching too far from the hotel! Also, whilst on tour we receive a per diem fee for food each day, which I normally am nowhere close to spending!
20 euros total for all of these seems a very decent price, i was expecting to read 50-80 total :P
Ha ha! It looks much worse in yen... Something like 2500 yen or something like that...