This beef and green pepper stir-fry with noodles is a delicious and satisfying meal that can be easily prepared using a food processor. Thinly sliced beef is stir-fried with green peppers, onions, and a flavorful sauce, then tossed with cooked noodles for a complete and filling dish. The food processor can be used to quickly and evenly slice the beef, chop the green peppers and onions, and even prepare the sauce. The beef is marinated in a mixture of soy sauce, garlic, and cornstarch, which helps to tenderize the meat and infuse it with flavor. The green peppers and onions add a fresh and crunchy texture to the stir-fry, while the sauce, made with a combination of soy sauce, oyster sauce, and sesame oil, adds a rich and savory flavor. Serve this delicious stir-fry over cooked noodles for a satisfying and flavorful meal.