Mixed-up food is a hit in Pittsburgh and the place to go for the quintessential mixed-up sandwich is where it was created - Primanti Brothers, a joint on West 18th Street near the produce market. 'Chipped-chopped' ham is piled inside Italian bread, along with cole slaw, tomatoes and hand-cut French fries! They open at 11colon00 pm and close early in the afternoon - just the place for night owls and swing-shift workers.