Cook pasta and drain, run under cold water. In steamer do carrots for 2 minutes, add broccoli; steam 5 minutes longer. Combine with artichokes, onions, and celery, toss with pasta, salt and pepper. For the dressing combine all ingredients in blender, process at low speed until smooth. Chill for one hour both the dressing and pasta, then add dressing to pasta and toss. Add the tomatoes on top of the pasta be for serving. Wash all vegetables.
- large sauce pan
- large bowl