Preheat oven to 400°. Whisk together peanut sauce and broth; toss with chicken, coleslaw mix and green onions.
Prepare noodles according to package directions; drain and toss immediately with chicken mixture. Transfer to a greased 13x9-in. baking dish. Bake, covered, until heated through, 10-15 minutes. If desired, top with peanuts and cilantro.
