I've modified it slightly from the original:
Layered Tortellini Pesto Chicken Salad
Ingredients
3 uncooked cups cheese-filled tortellini
1 cup peas, cooked and cooled
5 cups torn romaine lettuce
2 cups chopped or shredded chicken
1 medium red or orange bell pepper, chopped small
1/2 cup low-fat or fat-free Miracle Whip or mayo (I used miracle)
1/2 cup basil pesto (from the spaghetti sauce aisle)
1/4 cup low-fat buttermilk
Directions
In a small bowl or food processor, mix mayo, pesto and buttermilk. Chill in fridge at least 90 minutes.
Cook and shred/chop chicken. Chill in fridge at least 90 minutes.
Cook tortellini as directed on package. Drain, rinse with cold water, spray lightly with Pam spray to keep from sticking, chill in fridge for at least 90 minutes.
Prepare lettuce, pepper, and peas. Can be mixed and chilled ahead of time.
When ready to serve, mix all ingredients in a large bowl and serve immediately.