For Asian fusion, try Susanna Foo's or Buddakan. I love the shrimp at Morton's of Chicago... sure, have a porterhouse if that's your thing. Penang has Malaysian and Le Bec Fin is for those with $$$$$. There is nothing more fun than having lunch at the Reading Terminal Market. Food of every ethnic variety is sold from corned beef sandwiches to Chinese and an authentic Italian hoagie.
Most days, you can find fresh baked goods and food from the Amish of Lancaster County.