These days you can 3-D print just about anything—a wrist splint, a figurine that looks just like you, even components for rockets. Now food is on the list. One start-up, Natural Machines, began printing savory meals like ravioli and pizza in the fall of 2013. Over in Germany, the 13-year-old company Biozoon has started printing easy-to-swallow pureed foods for senior citizens, molded to look like the real thing. And 3D Systems will launch two commercial food printers, the ChefJet and the ChefJet Pro, this year.