Important Correction to Veggie Burgers Every Which Way: In the first printing of Veggie Burgers Every Which Way, Mushroom Burgers with Barley is incorrectly denoted as gluten-free in the table of contents and on page 64. In fact, barley is a wheat-free grain, but it is not gluten-free. Some people who follow a wheat-free diet are able to eat barley, while people who follow a gluten-free diet do not eat barley.