Pompeii is such an amazing archaeological site as it was frozen in time. Nor gradual decline. It really shows how the little things stay the same throughout history. From humor, to in this case, the presence of street food. I don't think there is any city we have found that is so preserved in time as Pompeii.
There is a nice youtue channel called "Tasting History" it has some episodes about pompeii food and all videos in general are really nice.
The dude is also a snack