This classic Chinese dish, also known as Qīngjiāo niúròu, is a delicious and easy recipe that can be made using a food processor. Thinly sliced beef is stir-fried with green peppers and a flavorful sauce, resulting in a dish that is both savory and satisfying. The food processor can be used to quickly and evenly slice the beef, making preparation a breeze. The beef is marinated in a mixture of soy sauce, ginger, garlic, and cornstarch, which helps to tenderize the meat and infuse it with flavor. The green peppers are sliced into thin strips and stir-fried until crisp-tender, adding a fresh and vibrant element to the dish. The sauce, made with a combination of soy sauce, oyster sauce, and sesame oil, adds a rich and savory flavor to the beef and peppers. Serve this delicious stir-fry over steamed rice for a complete and satisfying meal.