Tottenville, Staten Island is part of New York City, but it feels like you need a passport to get there. I had to go there for a non-chow related reason and took the SIRT all the way to the end of the line. I checked out a pizza place on Amboy Road just west of Main Street called Vellaggio (I'm probably spelling it wrong). I got what they called a "Brooklyn" slice, which basically was a Sicilian. It wasn't bad; nicely flavorful sauce, the pizza dough was tasty. Afterward, I went to an old-fashioned ice cream parlor up the block for dessert which wasn't anything out of the ordinary, but very nice.
This neighborhood doesn't strike me as a destination for food, but if you happen to be there for another reason, there are at least these two pleasant options.