The taco is deceptively simple by reputation. But the reality is: So much goes into the preparation for the myriad fillings of the ubiquitous taco that to dismiss this handheld meal as no more than street food is a huge disservice. Mexican food is a UNESCO-designated cultural treasure, and in the taco category, these vessels of masa, meat or meat-like proteins and spice are widely varied. See the list of 25 Essential Tacos, Explained here.