Perhaps Mexico’s most famous taco, the carnitas taco is steeped in history, passed down from generation to generation. And it has found its way from Quiroga in the state of Michoacan to North Texas.

There’s not exactly a shortage of brunches in this town. There is, however, a shortage of Mexican brunches, especially those with unlimited carnitas tacos and mole. Enter Porfirio’s, the upscale ...