Preparation Whisk first 6 ingredients in large bowl to blend. Add vegetables and olives. Toss to coat. Season with salt and pepper. Cover and refrigerate at least 2 hours, stirring occasionally. (Can be made 1 day ahead. Keep refrigerated. Let stand at room temperature 30 minutes before serving.) Transfer mixture to bowl and serve.
Preparation Whisk first 6 ingredients in large bowl to blend. Add vegetables and olives. Toss to coat. Season with salt and pepper. Cover and refrigerate at least 2 hours, stirring occasionally. (Can be made 1 day ahead. Keep refrigerated. Let stand at room temperature 30 minutes before serving.) Transfer mixture to bowl and serve.