Mediterranean fast casual is the segment to watch, with four such chains on the list. This Maryland-based concept recently secured $30 million in funding to expand to NYC and Boston. Cava is known for its better-for-you, build-your-own-bowl vibe. And it uses tech to improve the guest experience: For example, motion sensors in the ordering line showed traffic jams near the menu board, which led to a redesign.

LocationRockville, Md.
2016 Systemwide Sales ($000,000)$26,800,000*
YOY Sales Change76.3%
2016 U.S. Units25
YOY Unit Change92.3%
2016 Average Unit Volume ($000)$1,410,000*
Future 50 Year2017
Franchisingno
*Technomic estimate