This place is definetely one of my favourite if I wanna eat something small (or also big, if you like) and drink some glass of wine. It' in a very nice street full of bar and restaurant (which you can find also in the street next to this, Via S. Filomena, which is more "fancy"). Workers there are very nice, like the people who go there.
It's open also for lunch, and it's a very friendly place!
A glass of "Inzolia", sicilian white wine, just 2 Euro! (or red one for 1.80 Euro)