On a recent stroll we saw that right next to the future pidzza will be On Rye (740 6th St NW). Per this WashPo article, On Rye already exists at a stand in Nats Park where they apparently sell babka ice cream sandwiches, which sound unmissable. This Jewish Food Experience article concurs with that notion.
The On Rye website is aggressively minimalist, but their signage promises sandwiches, babka, pastries, egg creams and–wait for it–friends. We don’t know what egg creams are but it all sounds pretty tasty to us. They have a Twitter account too with photos of their menu items posted.