I mean, it is called orange tofu, but yes, you can use almost any other plant based protein in this recipe, with the note that they may need to be prepared somewhat differently. For example, if using store-bought or pre-made seitan chunks, you can just reheat them in a skillet and brown them a little, then they will be perfect to add into the sauce at the end of cooking just like I do the tofu. The same goes for any store-bought chicken alternative (like Gardein), but just prepare it according to package instructions and then add it to the orange sauce. If you’d like to use soy curls, I recommend rehydrating them in flavorful broth, squeezing the excess marinade off, and then dry frying in a skillet, adding a touch of oil only when they start to brown. I’m actually writing a book on soy curls, but in the meantime, learn more about how I use them in this list of soy curls recipes + tips and tricks.