Attilio Marini invented his unique cast iron skillet pizza in New Haven, but people shouldn’t expect it to taste like the more famous New Haven-style ah-beetz. “It’s a different flavor in the mouth.

Using a cast-iron skillet for this healthy pizza recipe gives you deep-dish pizza results with extra-crispy sides, but you can make it free-form too. Stretch the dough into a 12-inch oval and ...