Not everyone is keen to venture off the familiar pork, beef, and chicken taco path. But those who do find surprising and delectable noshes as approachable as lengua (beef tongue), as intimidating as sesos (cow brains), or as rare as nana (cow uterus). Although offal cuts and other seemingly exotic bites usually fit into the “traditional” taco category, they’re separated here to give them their proper due. Give them a try. We’re betting you find something you like.