Here in Italy you get sandwiches - panini - in the caffè bars, at the motorway bars, at the airports, and all over Italy now there are 'paninoteche', sandwich shops popping up everywhere in the big cities, the tourist resorts and in the mountain resorts (The North-West boundaries of Italy are all Alpine routes and resorts). Toasted ham and cheese is a big favourite, salami and salad, mozzarella and tomato, Parma ham and salad, cheese and salad porchetta (scrumptious roast suckling pig flavoured with rosemary and garlic, hot straight from the spit, tuna and salad. These are served in Italian flatbread as sandwiches, crusty rolls and piadina, a type of bread similar to Mexican bread for wraps. Sandwiches are ever increasing in popularity and are the only kind of street food you're likely to get here, unless it's things like donuts, cannoli and other types of street food sold at the many travelling fairs that go around Italy during the great winter festivals, especially Carnevale.
Hope that's informative enough!
di reston