DH and I made this recipe last night from the bistrokatie.com food blog and it is too good not to share. I have been able to find vegetarian Italian sausages that I like (Field Roast) and vegetarian chorizo (Trader Joe's), but not andouille. This recipe worked really well in another recipe that I was making (Recipe #373692). It looked good, tasted good, and held together pretty well. Katie says on her blog that she experimented with making the sausages without the chickpea flour and nutritional yeast and that it turned out rubbery and not as flavorful, so please don't substitute these ingredients. She says the recipe can be easily doubled. I found vital wheat gluten in a box by Arrowhead Mills and the garbanzo bean (chickpea) flour in a bag from Bob's Red Mill. Whole Foods has nutritional yeast.