One Startup Explains How it Runs a Foodservice Startup Without Any ServersEatsa lets you personalize your food order without talking to people.

There are no cashiers, servers or meat products at Eatsa -- but there are crowds eager to experience the future of fast food. Cofounder and CEO Tim Young launched two outposts -- one in San Francisco, one in L.A. -- of his fully automated eatery last year, with more locations on the horizon. He gave us a tour (by phone, natch).

Step right up."We want to provide as many cues as possible that the food is custom -- this isn't a vending machine," Young says. "So the menu skews toward personalization: Do you want to build your own? Do you want to add avocado or leave anything off?"