Texas barbecue is in the midst of a transformation. Long so entrenched in tradition that diners could predict the menu at a barbecue joint before visiting, smokehouses across the state are now experimenting with different cuts of meat, vegetables, flavors, and sauces. And as the state grows more diverse, these pitmasters come from a wider range of cultural backgrounds, with menus that incorporate flavors from around the world—often to very delicious ends. What tastes great with Texas barbecue? It turns out a lot of foods, including banh mi, injera, curry,…