Just ate a South Jersey delicacy, the original Tarantini panzarotti:

Deep-fried egg dough filled with cheese and tomato sauce, similar to but distinct from other "pizza pocket" variations.
Between this, the stromboli, and the ISOP, the Phila metro area really has more than its fair share of inverted pizza-related specialty foods, not to mention indulgences like the cheesesteak egg roll, available at any Plexiglass-screened Chinese food restaurant:

And if you're ever stuck at the Philadelphia Airport, try to get to Romano's in Essington (a tiny industrial town on the city limits near the airport) to try to original stromboli, invented there in 1950.