Many honey mustard recipes call for mayo, but you do not have to have mayo to make it. Here we used cashew yogurt for the creaminess and tangy flavor. Yum! Of course, you could always try a vegan mayo if that is your jam!  Because there is no mayo, this is an oil-free salad dressing. However, there is still a little fat from the yogurt. If you need to leave it out to make it more low-fat, feel free to. It just won't be as creamy.