Spray a large skillet with non-stick cooking spray. Add seafood, ginger and soy sauce. Stir-fry a few minutes or until seafood is done. Remove from skillet and keep warm.
Add green onions and red pepper to skillet. Stir-fry until crisp tender, adding water or broth, as needed, to prevent sticking.
In a small bowl, mix cornstarch with chicken broth. Stir into skillet. Cook, stirring constantly, until thickened.
Gently stir in cooked seafood, mandarin oranges and water chestnuts. Heat thoroughly. Serve over brown rice or noodles.