In a bowl, whisk together all dressing ingredients until well blended. Transfer to airtight container and keep chilled until ready to serve.
When ready to serve: In salad bowl, toss together all salad ingredients except chicken, oranges, and almonds. Toss in enough dressing to coat the veggies well. Gently toss in shredded chicken and mandarin oranges, sprinkling in more dressing as desired. Garnish top of salad with almonds when ready to serve. Serve immediately.
Extra dressing keeps nicely when chilled, in airtight container, for several weeks.