Mozzeria, a 5-month-old pizza place on 16th and Guerrero, is molded around this core tenet. A pizza covered in sweet caramelized-onion jam, pools of fresh mozzarella, and slices of curled, crisp pancetta that resemble splayed-out tulip blossoms — one of Mozzeria's best — costs $15, and is more than enough for one person.