you can check out keystone k for all kosher restaurants in philly. It is a very good hashgacha. If you tell me which area you are looking for I can give you more info. In Narbeth, PA (a few minutes from philly, depending where you are)there is an Acme which has a kosher section – bakery, deli… It is under the ou and very reliable. In Wynnewood, there is also a kosher section and deli and some bakery products.
restaurants near there – c and r kitchen, burger.org, shalom pizza, new york bagels,
center city – mama’s vegetarian, burger.org
further north – holyland pizza and grill
expresso