Sara Volovick at Chabad House in Pittsfield isreally the only place. You can purchase freshly prepared meals to go from her. As for Kosher food, the is limited selection in the Stop and Shop on Dan fox drive in Pittsfield. There is a large price chopper ove rin Colonie that has a large selection as well as a full kosher bakery.
Here is the link to Chabad's jewish visitors guide...more kosher food info there: