Look for the simple black awning over the narrow passageway that leads from the street to this hidden Aegean treasure. Be sure to ask for a table on the romantic patio amid twinkling lights, and immediately order a plate of their thick, satisfying tsatziki (yogurt-cucumber-garlic spread) accompanied by a basket of warm pita for dipping. Other specialties (recipes courtesy of Sofi's old-world grandmother) include herbed rack of lamb with rice, fried calamari salad, saganaki (kasseri cheese flamed with ouzo), and other hearty taverna favorites. Sofi's odd, off-street setting, near the Farmers Market in a popular part of town, has made it an insiders' secret.