I think a gourmet food truck would be perfect for Bethesda - no crazy rent expense, mobile, fun. Then I would be open breakfast and lunch, some staples with a few specials, good healthy bag lunches available at breakfast with pastries and hot lunch for a few hours too. The more I read about food and practice, and EAT, the more dissatisfied I am with the selections in restaurants and delis.
My sister sends me the best links about food, paris, budget travel and other cool stuff. Here is a link to the best food trucks in NYC from Budget Travel Magazine. There was also an article about food trucks in the Wall Street Journal a few months ago, so maybe it isn't such a crazy idea?? I just found a website selling food trucks - this one looks pretty good.