Oven-Roasted Pork Tenderloin with Mustard Herb Crust

By AislePrompt Editorial · Published 2026-04-30 · Updated 2026-04-30

Juicy pork tenderloin roasted with a mustard and fresh herb crust, delivering a flavorful and tender main dish. This French-inspired pork recipe, ready in about 35 minutes, pairs pork tenderloin, Dijon mustard, fresh rosemary for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 300 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Ingredients

• 1 (1 lb) pork tenderloin
• 2 tbsp Dijon mustard
• 1 tbsp, finely chopped fresh rosemary
• 1 tbsp, finely chopped fresh thyme
• 3 cloves, minced garlic cloves
• 2 tbsp olive oil
• 1 tsp salt
• 1/2 tsp black pepper

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Instructions

1. Step 1: Preheat oven to 400°F. Pat 1 lb pork tenderloin dry and season all sides with 1 tsp salt and 1/2 tsp black pepper.
2. Step 2: In a small bowl, combine 2 tbsp Dijon mustard, 1 tbsp chopped fresh rosemary, 1 tbsp chopped fresh thyme, 3 minced garlic cloves, and 2 tbsp olive oil to make a herb mustard paste.
3. Step 3: Rub the mustard herb mixture evenly over the entire pork tenderloin.
4. Step 4: Place the tenderloin on a roasting rack in a baking pan and roast for 20-25 minutes until the internal temperature reaches 145°F.
5. Step 5: Remove from oven and let rest for 5 minutes before slicing thinly to serve, ensuring juicy and flavorful pork slices.