The Burrito Brothers in Columbia closed. I'm not sure when. I saw the sign on the door when I stopped at King's Contrivance Sunday for bagels at Bagel Bin.
Burrito Brothers had a lonely location -- on the end of the shopping center as far as possible from the Harris Teeter. Although Columbia town centers seem limited in their ability to support restaurants, Kings Contrivance always felt like an exception with its tree-lined courtyard encircled by Bagel Bin, Rita's Italian Ice, Michael's Pub, and Trattoria E Pizzeria Da Enrico. Looks like Burrito Brothers couldn't make that grouping work.
(Update: Check out the comments below that recommend burritos at Frisco Grille and Lily's Mexican Market in Columbia.)
If you want an interesting lunch on the Mexican theme, check out the R&R Deli for spectacular tacos at Rte 175 and U.S. 1. A little closer to King's Contrivance is Bon Fresco at Snowden River Pkwy and Oakland Mills Pkwy-- spectacular sandwiches.