I guess you are supposed to have a cheese steak at this East Coast style diner, but the stuffed pizza is fabulous. I get the spinach stuffed pizza delivered a few times a month. The salads are nice and fresh too with a good house oil and vinegar dressing served with garlic bread. Look for coupons and menus inserted into the Chicago Reader newspaper. You can dine in the small seating area, get it delivered or stop in for a food pick-up.
In addition to the Philly cheese steak sandwich and my favorite pizza, you can get grinders and medium-crust pizza. I hear that Philadelphians transplanted to Chicago go here to get an authentic taste of home. You can even get Tasty Cakes! There is an Evanston location too.