Everywhere else in Mexico a flauta is a fried, rolled corn tortilla; in Ciudad Victoria it is a flour tortilla, warmed on the comal and not fried.
A flour tortilla, sometimes very large, rolled around a guiso such as picadillo, shredded meat, chicharrón in salsa, beans with cheese or chorizo with egg, and served with shredded cabbage, red and green salsas and lime at flauta stands.