Celebrity chef Aarón Sánchez is hitting the streets of Philadelphia on his latest search for the best Mexican food in America. No culinary tour of Philadelphia would be complete without cheese steak and at Union Taco, you get the best of both worlds in their Philly Cheese Steak Taco! Then savor a true Pennsylvania Dutch staple served up as a "scrapple taco" at Sancho Pistola's. Next up, a Philly original from Tuk Tuk Real dishing up a Thai fusion treat in a delicious duck taco. Last stop, La Calaca Feliz features a cauliflower taco so good it makes meat-craving carnivores rethink their menu choices.