Salad with Tahini Dressing

I have some organic greens, apple slices, avocado, sunflower seeds, and tahini dressing. This salad accompanied leftover whole wheat pasta. I had fruit and a few Fig Newmans for dessert. Fig Newmans are addictive.

Does anyone know of a good tahini salad dressing, either a recipe or a commercially prepared dressing? I had an amazing tahini dressing at a Govinda's in Denver, and one of the Hare Krishnas was kind enough to write down a recipe off the top of his head, but it just didn't come out right.