We love this fast dinner idea for roast pork tenderloin. A simple herb rub of mustard, garlic, and rosemary gives big flavor. Sear the tenderloins in a hot pan until deeply browned, then finish in the oven until the interior is a perfect rosy pink. Add a green salad or roasted vegetables and bread, and dinner is ready in about 30 minutes.

Hello everyone—
With cooler weather on the horizon, roasting and baking feel especially appealing, but this roast pork tenderloin is quick enough to enjoy any time of year. The method is straightforward and reliable: trim, rub, sear, and roast.

How to make this
Start by coating the pork with an herb-mustard rub. Sear the tenderloins in a hot skillet to develop color and flavor, then transfer the pan to a hot oven to finish cooking.
Key steps:
- Trim away any silver skin from the tenderloins.
- Combine a rub of dijon mustard, chopped rosemary, garlic, olive oil, salt, and pepper.
- Spread the rub over the meat.
- Sear in a cast iron skillet until all sides are browned.
- Roast in a hot oven until the internal temperature reaches the target range, then rest briefly before slicing.
What is silver skin?
Silver skin is a tough, silvery layer of connective tissue on some cuts. It’s visible as a white strip and should be trimmed away with a sharp knife so the meat cooks evenly and the rub adheres properly.
Why sear first?
Searing creates a deeply browned surface that adds aroma and flavor. Because tenderloins are relatively small and cook quickly in the oven, searing ensures you get a flavorful crust that roasting alone won’t produce in the short cook time.

What temperature to cook pork?
Modern guidance supports cooking pork to lower temperatures than many people expect. The USDA recommends a minimum of 145°F for whole cuts, but for the most tender, juicy result remove the pork from the oven at 135°F. Let it rest for about 5 minutes; carryover cooking will raise the internal temperature to roughly 140–145°F while keeping the meat succulent. Properly cooked pork may retain a pink hue—this is safe and often desirable.
Difference between pork loin and tenderloin
Pork loin and tenderloin are distinct cuts from different parts of the animal. The loin is broader, often has a fat cap, and benefits from slower roasting; it can become tough if overcooked. The tenderloin is a long, narrow, very tender muscle that cooks quickly at higher heat and is ideal for searing and quick roasting.

More Tenderloin Recipes
- Spanish Grilled Pork with Peaches and Radicchio
- Grilled Pork Tenderloin with Apples
- Sauteed Pork Medallions with a Cider Cream Sauce
If you make this roast pork tenderloin, I’d love to hear how it turned out—leave a comment with your experience or any questions.
– Happy Roasting, Annemarie

Print Recipe
Simple Roast Pork Tenderloin
Ingredients
- 2 1 1/2 lb pork tenderloins
- 1 tbsp olive oil
Herb Rub
- 1/4 cup dijon mustard
- 1 tbsp minced fresh rosemary, or 1 tsp dry rosemary
- 1 tbsp olive oil
- 2 cloves garlic, minced
- 1 1/2 tbsp kosher salt
- 1 tsp black pepper
Instructions
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Heat oven to 450°F.
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Trim the pork tenderloins, removing any silver skin.
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Mix the rub ingredients—dijon mustard, rosemary, olive oil, garlic, salt, and pepper—and spread evenly over the meat.
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Heat 1 tablespoon olive oil in a 12-inch cast iron skillet over medium-high heat.
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When the oil shimmers, add the tenderloins to the skillet.
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Sear on all sides until browned, about 6–7 minutes total.
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Transfer the skillet to the oven and roast until an instant-read thermometer reads 135–140°F, about 11–13 minutes.
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Let the meat rest for 3–4 minutes, then slice and serve with your favorite sauce.
Notes
- Sauces: A quick pan sauce pairs nicely with this pork. Good options include blue cheese–style dressings, a fresh red currant sauce, a port-cherry reduction, or a romesco-style sauce.
- Temperature reminder: For a juicy, slightly pink center, remove the tenderloins at 135–140°F and allow them to rest for about 5 minutes so the internal temperature rises into the safe and tender range.

