One of the city’s favorite pizza parlors and probably the liveliest spot in the Kalsa quarter is always jam-packed. In the large, bright room, and on the terrace facing a scrappy patch of greenery, you’re likely to be rubbing elbows with students and long tables occupied by extended families. Aside from some appetizers, you won’t find much but pizza, with choices running to the dozens and including some decadent dessert concoctions. The kitchen and staff can barely keep up with the crowds, so you might wait a bit for your pizza and service can be hurried. Reservations are essential on weekends, when you’re unlikely to get a table without one.