 Flour is added to the browned meat and vegetable mixture to dry, thicken and loosely bind the filling.The meat filling can be used in other foods (e.g., tacos, tamales, enchiladas, stuffed bell pepper "et al") but the wheat turnover crust is a defining element.The traditional size is approximately 4 ounces (by weight) on a 5"-6" diameter pastry dough (with the dough circles being cut, traditionally, using an empty coffee can).