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Roasted Pork Tenderloin with Butternut Squash Mash and Tarragon Gravy

This roasted pork tenderloin with butternut squash mash is a sophisticated yet simple dairy-free main course that celebrates autumnal flavours. The lean pork is seared for a deep crust before being roasted to succulent perfection, ensuring the meat remains tender and juicy. Paired with a naturally sweet squash mash and a glossy tarragon gravy, it offers a wonderful balance of savoury herbs and vibrant produce without the need for butter or cream.

Ideal for a healthy mid-week dinner or a lighter Sunday roast alternative, this recipe is packed with nutrients and high-quality protein. The addition of toasted walnuts provides a satisfying crunch that complements the silky texture of the mash. Serve this wholesome dish to guests for a gluten-free and dairy-free meal that feels truly indulgent while remaining light and balanced.

Continue reading below

Ingredients for Roasted Pork Tenderloin with Butternut Squash Mash and Tarragon Gravy

  • 1 medium butternut squash, cut in half lengthwise, seeds removed

  • 450g lean pork tenderloin, trimmed of all visible fat

  • Salt

  • Freshly ground black pepper

  • Nonstick butter-flavoured cooking spray

  • 120ml unsweetened applesauce

  • 20ml Dijon mustard

  • 120ml apple cider or low-fat, low-sodium chicken broth

  • 1 tablespoon plus 2 teaspoons agave nectar

  • 2 teaspoons chopped fresh tarragon

  • A pinch of ground nutmeg

  • 80g toasted walnuts, broken into small pieces

How to make Roasted Pork Tenderloin with Butternut Squash Mash and Tarragon Gravy

  1. Preheat the oven to 204°C.

  2. Place the butternut squash, cut side down, on a microwave-safe plate. Microwave on high till the squash is tender, about 12 to 15 minutes.

  3. Meanwhile, heat a large cast-iron skillet over high heat. Season the pork with salt and pepper to taste. When the pan is hot, coat it with the cooking spray. Add the pork to the pan and sear on all sides, about 3 minutes per side. Transfer the pork to a baking sheet and continue cooking in the oven till done, about 10 to 15 minutes, or until the internal temperature reaches 68°C. Remove the baking sheet from the oven, and tent the meat with foil to keep it warm. Let the meat rest for at least 10 minutes before slicing.

  4. In the same pan over medium-low heat, add the applesauce, scraping up any flavorful bits with a wooden spoon. Add the mustard, apple cider, 2 teaspoons agave, and tarragon. Stir continuously until the sauce thickens. Season with salt and pepper to taste.

  5. With a spoon, scoop the flesh of the squash into a medium bowl. Mash the squash with a fork, and add the nutmeg grates and remaining agave. Stir till combined. Season with salt and pepper to taste.

  6. With a sharp knife, thinly slice the pork. Serve the pork with the reduced sauce and the butternut squash. Sprinkle the walnuts on top of the pork.

Disclaimer

While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.

Article history

The information on this page is peer reviewed by qualified clinicians.

  • 16 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
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