And in further expansion news, Roam Artisan Burgers is moving in on the former Osaka space (1923 Fillmore), which has been closed “for renovations” for a couple of months. As the Scoop learns, the sustainably focused Roam is plotting a second location just as Super Duper has opened four Bay Area locations with plans for more, and Umami Burger has traveled from L.A. to open in Cow Hollow with another location in Oakland coming shortly. If all goes well, the second Roam will open by summer. Yes, high-end burger saturation seems all but guaranteed, but no one’s likely to complain. [Scoop]