Regular salad dressing is full of fat and the healthier ones don't taste too good. Using plain yogurt or Greek yogurt is great, but sometimes you just want a familiar taste. I sometimes use 1Tbsp of my favorite regular salad dressing along with some citrus juice and dried herbs and seasonings. It's the salad dressing I love, but not so much of it! It helps me to "wean" myself from the unhealthier dressing as I go through my journey.
If I'm not over my fat limit I would also add 1tsp of olive or coconut oil. I also chop onions and add habanero (or some other spicy pepper) for more flavor. Sometimes, I even omit the oil and add chopped green olives.