A beef stir-fry is a quick and flavorful dish that can be made with ground beef. Start by browning the ground beef in a hot skillet, then add your favorite stir-fry vegetables such as bell peppers, onions, and broccoli. Cook until the vegetables are tender-crisp and the beef is cooked through. Add a sauce of your choice, such as soy sauce or teriyaki sauce, and toss everything together until well coated. Serve the beef stir-fry over steamed rice or noodles for a satisfying and complete meal.