Second Fairlane Diner. Be prepared to wait for a booth. It's tiny but worth it. For an evening destination, I would suggest Mina Cucina on North Bethlehem Pike in Springhouse. No reservations and byob. You should be fine if you arrive by 6pm.
If you need to stay close the Penn diner is a very small old fashioned place where you will get calledhon a lot. NOT a foodie place but it is in oreland.on penna. Ave. Pizza Box on Limekiln Pike has VG cheesesteaks and .....pizza.