To label this place behind the Mercato Centrale a mere sandwich joint is like describing the Super Bowl as “a football game.” Bondi specializes in piadine in the Florentine style, prepped to order from a long list of traditional and unusual combinations. Order at the bar and take a seat on rustic wooden benches to wait the arrival of your flatbread (toasted or cold) filled with any number of combos, including radicchio and mozzarella, herrings and baby tomatoes, or eggplant parmigiana. Wash the piadina down with a glass of Chianti at 2€ a shot. No credit cards.