Cook the orzo according to package directions. Drain and set aside to cool, about 10 minutes.
Mix all the dressing ingredients in a small bowl or jar. Whisk or shake with lid on vigorously to combine.
In a large bowl, mix cooled orzo, vegetables, Kalamata olives and cheese. Add about half of the dressing and toss to coat. Keep refrigerated for about 2 to 3 hours and add remaining dressing before serving.
