In small bowl blend cornstarch , teriyaki sauce, crushed red pepper and chicken broth. Set aside. In large skillet, stir fry shrimp 2-3 minutes in oil and garlic. Remove. Add 1 tbsp. oil to skillet. Stir fry pepper, mushrooms and scallions under crisp tender, about 2-3 minutes. Stir in reserved broth mixture. Heat, stirring under thickened. Return shrimp to pan, heat and serve. May be served over rice or noodles.