For a decade, sibling owners Alvaro and Andrés Sandoval have set a high standard with Boston’s most popular tortas — soft, warm Telera bread filled with flavorful carnitas (or choose from nearly a dozen other options), beans, chipotle mayonnaise, and pickled onions , fresh avocado and gooey Oaxaca cheese. The menu also includes standout tacos, burritos, Mexican beers and more. The mini-empire now includes outposts in Boston’s North End, David Square in Somerville, as well as crimson taco trucks cruising the Greenway in Boston, Harvard Square in Cambridge, and near South Station in Dewey Square.