One-Pan Pork Tenderloin with Colorful Roasted Vegetables
There are nights when you want a dinner that looks impressive, tastes absolutely incredible, and still requires almost no effort to pull together. This one-pan pork tenderloin bake is exactly that kind of meal. You simply place the pork right in a glass casserole dish, surround it with a rainbow of fresh vegetables, season everything beautifully, and let your oven do all the heavy lifting.
The result is a juicy, perfectly roasted tenderloin with caramelized, tender vegetables that soak up all those savory pan juices. Once your family tastes this, it will quickly become a weeknight staple. Best of all, cleanup is a breeze since everything cooks together in one dish.
Ingredients
- 2 pork tenderloins (about 1 to 1.5 pounds each)
- 2 tablespoons olive oil
- 1 tablespoon garlic powder
- 1 teaspoon dried Italian seasoning
- Salt and freshly cracked black pepper to taste
- 1 red bell pepper, diced
- 1 yellow bell pepper, diced
- 1 orange bell pepper, diced
- 1 red onion, diced
- 2 medium zucchini, diced
- 2 medium carrots, diced
- 3 stalks celery, diced
Method
- Preheat your oven to 425 degrees Fahrenheit (220 degrees Celsius).
- Pat the pork tenderloins dry with paper towels and place them side by side in the center of a large glass casserole dish.
- Drizzle the olive oil over the pork and rub it all over the surface to coat evenly.
- Season the tenderloins generously with garlic powder, Italian seasoning, salt, and plenty of freshly cracked black pepper, pressing the seasoning gently into the meat.
- Arrange all the diced vegetables evenly around the pork in the casserole dish, filling in every space with the colorful mix of peppers, onion, zucchini, carrots, and celery.
- Drizzle a little extra olive oil over the vegetables and season them lightly with salt and pepper. Toss them gently right in the dish to coat.
- Place the dish uncovered in the preheated oven and roast for 25 to 30 minutes, or until the pork reaches an internal temperature of 145 degrees Fahrenheit on a meat thermometer.
- Remove the dish from the oven and let the pork rest for 5 to 10 minutes before slicing. This step is important as it allows the juices to redistribute throughout the meat.
- Slice the tenderloin into medallions, serve alongside the roasted vegetables, and spoon any pan juices over the top for extra flavor.
Tips for the Best Results
Make sure all your vegetables are cut to roughly the same size so they cook evenly. If you prefer your vegetables to have a little more color and caramelization, you can spread them in a single layer and avoid piling them on top of each other. For a slightly richer flavor, swap the olive oil for melted butter or use a combination of both. Leftovers store wonderfully in the refrigerator for up to three days and reheat beautifully for a quick next-day lunch.
Why This Recipe Works Every Time
Pork tenderloin is one of the leanest and most tender cuts of pork available, making it naturally flavorful and quick to cook. When roasted at a high temperature alongside vegetables in a glass casserole dish, the heat distributes evenly, ensuring the pork stays moist while the vegetables soften and develop deep, savory flavor. This is genuinely the kind of effortless, crowd-pleasing dinner that earns a permanent spot in your weekly rotation.
