Pork tenderloin with blueberry-onion sauce

The frozen blueberries paired with balsamic vinegar, caramelized onions, port wine, and cherry tomatoes in this recipe offer a sweet-and-sour sauce that's simply divine with pork tenderloin. There's basically zero prep involved to cook the pork; all you have to do is place the tenderloin in the broiler and let it cook for 20 minutes. While that's happening, make the pan sauce, and this impressive-looking, easy weeknight dinner comes together in just half an hour. Thinly slice the pork into medallions, pour that luxurious sauce over, and dinner is ready to go. You can serve lightly dressed greens alongside to complete the meal.