"In the southwest corner of one of Rome’s most touristy squares, Forno Campo de’ Fiori bakes sweet and savory Roman specialties like jam tarts and flatbreads. Look for pizza alla pala (long slabs baked directly in a deep electric deck oven), which is sold in slices by weight; the unctuous toppings and crispy bases make a surprisingly balanced pair. Must-try dish: The pizza con mortadella is one of the best bites in town." - Katie Parla