I'm reading the NPR book, Hidden Kitchens by Nikki Silva and Davia Nelson, which is really good. I highly recommend it to you, and the series of the same name on NPR's web site (you can listen to broadcasts of the show there). I especially love the story on San Antinio's Chili Queens. I got me thinking about hidden kitchens in Baltimore, so I'll list a couple that I can think of off the top of my head.
Does anyone know of any more or have anything to add about the ones I've listed?
1. St. Michael's Ukrainian Orthodox Church (the pierogi ladies). Here's a link to a citypaper story that mentions them:
2. The lunch wagons in upper FP
3. The souvlaki guy in front of the Welch Library on Monument St.