Imagine a taqueria somewhere in Mexico. The familiar smell of melted cheese, warm wheat tortillas and spicy salsas in the air, and tables lively with chat and laughter. In between, trays of cool drinks and plates of hot dishes. In fact, you don’t have to cross the Atlantic for this. You can have it all at L’Informal Tacos in Palma. Among my favorites are the cochinita pibil tacos, a traditional Mexican slow-roasted pork dish from the Yucatán peninsula. Chef Christian Piedrahita nicely marinates…