Mimosas on a Monday? Dim sum instead of a sad desk smoothie bowl? You only live once. Here’s where you can satisfy brunch cravings all week long. A&J Restaurant 1319 Rockville Pike, Rockville; 4316 Markham St., Annandale A&J Restaurant. Photograph by Scott Suchman . Housemade noodles and pork potstickers star at these dim sum