I've actually been eating a fair amount of tofu in Pathfinder, mainly because I bred soybeans for some reason, and there's four different foods you can make from them without using any other ingredients or fuels- just a couple Pressers and some time.
You can also use soy products in place of almost any animal product. Yes, you can make bacon cheeseburgers out of soy milk and tofu. No, I would never eat such a thing IRL.