What is the future of food halls?

Craving a slice of Detroit-style pie, but your friend wants Thai and you're both looking for a beer to wash it all down? Food halls have you covered. From Atlanta's famed Ponce City Market to the institutional Chelsea Market in New York City and the newbie Little Italy Food Hall in San Diego, food halls have claimed a corner of the fast-casual market as their own, offering a new, growing business model for the industry.