In a small bowl combine ingredients and set aside.
Tear lettuces into bite sized pieces and place in a large salad bowl. Add nectarines, onion, prosciutto, berries and almonds. Whisk dressing, pour over greens and toss lightly. Serve on cold salad plates.
Per serving: About 234 cal, 3 g pro, 19 g total fat (3 g sat fat), 16 g carb, 3 g fibre, 0 mg chol, 154 mg sodium.