Beef and Green Pepper Stir-Fry with Black Bean Sauce is a delicious and flavorful dish that is quick and easy to make. Thinly sliced beef is stir-fried with green peppers, onions, and garlic in a savory black bean sauce. The black bean sauce adds a rich and umami taste to the dish, while the green peppers provide a fresh and crunchy texture. This stir-fry is perfect for a weeknight dinner or a busy lunch. Serve it over steamed rice or noodles for a satisfying and complete meal. With its bold flavors and colorful presentation, this dish is sure to be a hit.