Store-bought dough brings homemade pizza into the realm of easy weeknight cooking. To simplify prep even further, we took a cue from rectangular focaccia-like Sicilian pizza and Roman pizza al taglio.

There is no shortage of good pizza in this city. You’ve got paper-thin Neapolitan pies with bubbling, soft crusts, deep dish cornmeal-based comfort, and late-night gooey, delightful slices. But the ...