A calzone is a calzone is a calzone. Except when it's not. On the East Coast, a similar pizza-like concoction of dough and cheese and other ingredient goodness is known not as a calzone but as a stromboli. It's relatively common in Philadelphia and the surrounding area and it's actually distinct from a calzone. As to the precise difference between the two, a calzone is what you'll find here, in this recipe. It's a sort of stuffed pizza of sorts. A stromboli is more rolled than stuffed (and, to be frank, it also seems more specific in terms of what ingredients it can or cannot contain). Whereas we like to play loose and easy with the ingredients depending on our mood and the contents of our fridge. We expect you'll do the same.