Heat 1 tablespoon of oil over medium heat in a large skillet. Add the ground chicken and cook, crumbling it as you go. Season the chicken with salt & pepper to taste, then add the soy sauce, ginger, and five spice and saute until chicken is fully cooked. Add the shredded cabbage, celery, onion, salt, sugar, corn starch, and sesame oil. Cook, stirring, 4-5 minutes or until tender-crisp.