When three Georgetown University graduates carved out a closet-sized niche to sell freshly made salads and tart frozen yogurt in 2007, no one in the city batted an eye. Since then, their empire has expanded to 16 locations—and a popular annual music festival—while branching out into fresh juice and healthful, tasty "market sides" that use all local ingredients, such as spicy kale and balsamic roasted sweet potatoes. The guacamole salad, which brilliantly deposits every
flavor of the Mexican dip onto mixed greens, remains a classic. But everything else about this franchise is breaking new ground.