Currently driving from Florida to San Francisco right this very second is a 25-foot trolley with a built-in pizza oven. It is a pizza trolley.

The folks behind the mobile pizzeria are Melody and Russell Stein, who own Mozzeria in the Mission District. The Steins are deaf, and Mozzeria is the first deaf-owned restaurant to get pie certification from the Associazione Verace Pizza Napoletana (AVPN).