There are many types of cibo da strada (‘street food’) or cibo da passeggio (“walking food”) in Italy. The good people of Emilia-Romagna created the piadina, a sort of wrap, similar to indian pita, now very popular all over Italy
In Tuscany the Panino con la Porchetta is a must Porchetta:
Panino con porchetta:
In Sicily the typical street food is the divine Arancino
All over Italy you can find a lot of friggitorie, that sell any kind of fried food
Forget your liver, and enjoy!