Beef Noodles with Spicy Xo Sauce is a flavorful and satisfying dish that combines tender beef, chewy noodles, and a spicy and umami-packed Xo sauce. The beef is marinated in a mixture of soy sauce, sesame oil, and garlic, then stir-fried until browned and cooked through. The Xo sauce, made with dried shrimp, scallops, and chili peppers, adds a rich and complex flavor to the dish. Serve this delicious and spicy noodle dish for a quick and easy weeknight dinner.