Makes 4 servings at 97¢ each. Prep: 20 minutes. Cook: 20 minutes.
Combine broth, soy, sherry, cornstarch, sugar and pepper flakes.
Heat wok or large skillet over medium-high heat. Add oil; swirl to coat pan. Add beans; stir-fry 4 minutes or until beans are spotted black.
Add pork; stir-fry 2 minutes, breaking up meat. Add garlic and ginger; stir-fry 1 minute longer.
Add broth mixture. Cover and cook 5 minutes. Uncover; stir in water chestnuts and cook over high heat for 5 to 8 minutes or until mixture is practically dry. Serve at once.