Chickpea and Hijiki Salad Sandwich Reminiscent of tuna salad, this vegan chickpea and hijiki salad sandwich from Vegan With a Vengeance contains chickpeas mashed with carrots, apple cider vinegar, vegan mayo, and other tuna salad staples. If you can't find hijiki, try using another type of seaweed instead. Image Source: Flickr user rusvaplauke