Cook elbow macaroni according to package directions. Drain and set aside. In a large skillet, combine ground chicken and water. Cover and cook over low heat for 15 minutes. Break up with a fork. Cover and cook 5 minutes more. Add corn, parsley, chili powder, salt, cumin, and black pepper. Mix well. Stir in cream cheese, milk, and elbow macaroni. Heat through. Arrange cheese triangles atop chicken mixture. Cover skillet and heat over low heat for ten minutes or until cheese has melted.