Sharon Ardiana's second restaurant has settled into the Haight as comfortably as Gialina, her first, has into Glen Park. Ragazza keeps the locals who pack it cheek-to-jowl appeased with giant salads and ephemerally crusted pizzas (current favorite: the Bianca, with onion crema, preserved lemon and wild arugula). As the weather warms up, keep in mind that the back patio is open for seating.