The above image was submitted by DCist reader Megan Griffin. We’ve all heard that the local Top Chef contestants have been doing their shopping at the Silver Spring Whole Foods. During Megan’s recent visit to the store, she noted a sign that said “Magical Elves Productions (Top Chef’s production company) was taping something called ‘The Mission.'” Inside, she spotted a number of lights and TV cameras, and several people in line buying enormous quantities…