1. Stir the cornstarch, broth and soy sauce in a small bowl until the mixture is smooth.

2. Heat 1 tablespoon oil in a 10-inch skillet over medium-high heat. Add the pork and stir-fry until well browned. Remove the pork from the skillet.

3. Heat the remaining oil in the skillet. Add the vegetables, garlic powder and ginger and stir-fry until the vegetables are tender-crisp.

4. Stir the cornstarch mixture in the skillet. Cook and stir until the mixture boils and thickens. Return the pork to the skillet. Cook until the pork is cooked through. Spoon the pork mixture into the pastry shells.