May is here and the carts are out! Plenty of newcomers on Library Mall. Athens is justifying its victory in the citywide food cart contest, serving first-rate gyros with french fries in the sandwich, and a solid spanikopita too. And on Tuesdays and Wednesdays we now have Ingrid’s Lunch Box, once chosen by Bon Appetit as one of the nation’s top ten food carts. Meanwhile, two recession-victim restaurants, Africana and King of Falafel, have reinvented themselves as carts; haven’t tried either, but K of F was dependably good when it was a building.