Step away from that drive-thru. Instead grab a blanket and head to Discovery Green, where some of Houston's best restaurants — including Haven, Beaver's, Ruggles Green, T'afia, Raven Grill, Zelko Bistro, Georgia Farm to Market and Slow Dough Bread Co. — will be serving local organic cuisine in the annual Slow Food Picnic. Your taste buds will thank you.