Washington, D.C.'s deluge of spring restaurant openings may have tapered off a bit, but there are still a few left to watch. Take Kapnos (meaning 'smoke' in Greek), for instance. The latest establishment from Top Chef alum Mike Isabella welcomed its first customers last Friday to its fare share of fanfare. Isabella, who has a professional background in Greek cuisine, describes the menu as "focused, traditional; not your neighborhood gyro joint." We paid an early visit to check it out.