I used to pass the Booeymonger in Ballston on my way to work every day, but never stopped...
We have a semi-hidden secret here in Frederick called
aka Frisco's that is tucked back in an industrial park. Amazing cold cut sandwiches, soups, salads and baked potatoes. One of their specialties is called exploded potatoes. Imagine potato salad with chives and butter, smashed to hell and served warm. Sounds weird, but they are amazing. Today, I had their roast beef and cheddar with a cup of white bean chicken chili.