Cook pasta according to package directions., Meanwhile, in a small bowl, toss chicken with cornstarch, salt and pepper. In a large nonstick skillet, heat oil over medium-high heat. Add chicken mixture; cook and stir until no longer pink. Stir in spinach and cherries; cook 3-4 minutes longer or until spinach is wilted., Drain pasta, reserving 3/4 cup pasta water. Place pasta in a large bowl; sprinkle with nutmeg and toss to combine, adding enough reserved pasta water to moisten pasta. Serve with chicken mixture. Sprinkle with cheese and nuts.