Tucker Duke is the animal companion of chef Brian Cartenuto, whose resume includes stints at higher-end restaurants in Seattle. If the name sounds familiar, you may have seen Cartenuto win Food Network’s first season of “Cutthroat Kitchen” last year. He returned to his Panhandle roots in 2011 to open an eight-seat lunch counter to offer his riffs on Southern comfort foods and sandwiches. He soon added the extraordinary burgers for which he’s become famous, and outgrew his original Valparaiso location within the year.