Make the dressing by combining the ingredients and whisking until smooth. Refrigerate until ready to use.
Cook the pasta according to package directions. Drain and rinse with cold water.
Assemble the salad by adding the pasta to a large bowl, followed by ¼ cup dressing and toss to combine.
Add the chicken, spinach, mandarin oranges, cranberries, green onion, parmesan cheese, and toasted almonds to the bowl and toss.
Drizzle additional dressing over the top and toss everything to combine. Serve immediately.