Erbazzone Reggiano
Erbazzone Reggiano are thin, crisp savory pies chock full of Swiss chard, Parmigiano Reggiano and slow cooked onion, sometimes pancetta too but I didn't have any. Other variations contain ricotta or potatoes or rice.
Erbazzone can be found in the Italian region of Emilia-Romagna from June through November (chard season).