Green Leaf Salad with Roasted Beets and Potatoes

 Heat oven to 425 with oven rack in the upper third of the oven. Toss potatoes in olive oil, salt and pepper and spread them out evenly on a baking sheet. When oven is to temperature put sheet in the oven and roast potatoes, stirring occasionally, for 25-30 minutes.Meanwhile, wash and chop the lettuce. Mix all dressing ingredients in a separate bowl. When potatoes and beets are done, toss them in a large bowl with the lettuce. You can serve the salad warm with the potatoes and beets warm, or set these aside to cool for a cold salad. Pour dressing over the salad, and toss immediately before serving.