Must-tries: Customers come (and come again) for items like reasonably-priced tacos and Mexican street corn, all made according to the recipes of the original Papi’s in Fells Point. The elote, grilled corn on the cob sprinkled in salty cotija cheese, is addictive: You may be eating the crumbs of cheese from the plate. We also liked the fresh ceviche, a generous mezcla of fresh shrimp, crab and calamari and tilapia, garnished with orange slices. Skip the queso fundido and instead go for the guacamole, mashed tableside, as an accompaniment to your free corn chips. I liked the tongue tacos; the lengua meat is cubed and salty, tasting kind of like corned beef.