Empty Pasta mix into 3-quart saucepan 2/3 full of boiling water. Gently boil uncovered about 12 minutes, stirring occasionally.
Drain pasta; rinse with cold water. Shake to drain well.
Stir together Seasoning mix, oil, water and mustard in large bowl. Stir in pasta-vegetable mixture. Stir in chicken. Toss with Parmesan Topping. Refrigerate any remaining salad.