Pulse cauliflower florets in a food processor a few times and until cauliflower has a couscous texture. You may need to remove "couscous" and continue to pulse florets that did not grind well.Toss cauliflower "couscous" along with all other "couscous" ingredients in a medium to large bowl.Add all dressing ingredients into the bowl of a food processor or pitcher of a blender and puree until smooth with little green flecks. Transfer to a container with a lid. You probably won't want to use all of your dressing for the cauliflower "couscous".