3
cups uncooked penne pasta (10 oz)
4
cups cubed deli rotisserie chicken (from two 2- to 2 1/2-lb chickens)
2
cups seedless red grapes, cut in half
2
medium stalks celery, sliced (1 cup)
1/3
cup chopped onion (1 small)
3
tablespoons olive or vegetable oil
2
tablespoons chopped fresh or 2 teaspoons dried thyme leaves, crushed
1 1/4
cups reduced-fat mayonnaise or salad dressing
1
tablespoon milk
1
tablespoon honey
1
tablespoon coarse-grained mustard
1
teaspoon salt
1
cup chopped walnuts, toasted