I'd recommend Bagel Dish Cafe for great sandwiches, wraps, and salads. Not a typical american diner experience but a great place for good simple fare. If you're looking for a blast from the past fast food experience try White Rose (knows as "The System"). Great burgers and fries in an unique setting. If you have slightly more funds one of the best spots in town is Pthari. Great greek food moderately priced. Truly a gem.