What is the Z-Man sandwich?

The Z-Man sandwich is a popular menu item at Joe's Kansas City Bar-B-Que in Kansas City, Missouri, USA. It consists of slow-smoked beef brisket, provolone cheese, onion rings, and barbecue sauce, served on a Kaiser roll. The Z-Man sandwich has become a staple at Joe's Kansas City and is widely considered one of the best barbecue sandwiches in the country.