This quick and easy stir-fry is a great way to use up any leftover vegetables in your fridge. Start by pulsing some garlic and ginger in a food processor, then add the ground beef and pulse until finely chopped. Heat some oil in a wok or large skillet, and stir-fry the beef mixture with your vegetables of choice (such as bell peppers, broccoli, and carrots) until tender. Serve over rice or noodles for a satisfying meal.