In a large nonstick skillet or wok, stir-fry chicken in oil for 8 minutes or until lightly browned and juices run clear. Remove and keep warm. In the same skillet, stir-fry the broccoli, red pepper, water chestnuts, snow peas, onion and garlic for 6-8 minutes or until crisp-tender.
Return chicken to the pan; sprinkle with Chinese Five spice. Stir in broth; bring to a boil. Combine cornstarch and cold water until smooth; gradually stir into skillet. Cook and stir for 2 minutes or until thickened. Serve with rice.