02/28/2026
🍽️ Jamie Oliver Roasted Lamb Tenderloin Recipe
⏱️ Prep: 15 min | Cook: 30 min | Servings: 4
Okay, friends, I HAVE to share what I made for dinner last night! This Jamie Oliver-inspired lamb tenderloin totally knocked our socks off. It looks fancy, but honestly, it comes together in just about 45 minutes total. Perfect for a weeknight when you want something special without all the fuss. The marinade is just incredible – super fresh and zesty. Seriously, give this a try!
📝 Ingredients:
The Tenderloin Star
- 1 1/2 lbs lamb tenderloin
Aromatic Mediterranean Rub
- 4 cloves garlic, minced
- 2 sprigs fresh rosemary, leaves picked and finely chopped
- 1 tbsp fresh thyme leaves
- 1 tsp sea salt
- 1/2 tsp freshly ground black pepper
Zesty Golden Glaze & Roasting Companions
- 1/4 cup extra virgin olive oil
- 1 whole lemon, zested and juiced
- 1 tbsp Dijon mustard
- 1 tsp honey
- 1 tbsp red wine vinegar
- 1 cup cherry tomatoes
- 1/2 medium red onion, roughly chopped
- 1/4 cup pitted Kalamata olives
Fresh Finish
- 2 tbsp fresh parsley, chopped, for garnish
👩🍳 How to make it:
1. First, preheat your oven to 400°F (200°C). While it's heating, grab a small bowl and mix together the minced garlic, chopped fresh rosemary, fresh thyme leaves, sea salt, and black pepper for your rub.
2. Pat the lamb tenderloin dry with paper towels. Then, generously rub that delicious aromatic mixture all over the lamb.
3. In a separate bowl, whisk together the olive oil, lemon zest, lemon juice, Dijon mustard, honey, and red wine vinegar. Set this aside. In a roasting pan or oven-safe skillet, toss the cherry tomatoes, red onion, and Kalamata olives with a drizzle of olive oil.
4. Heat a large oven-safe skillet (if not already using one for the veggies) over medium-high heat with a little olive oil. Once hot, sear the seasoned lamb tenderloin for 2-3 minutes per side until it's nicely browned all over.
5. Transfer the seared lamb to the roasting pan with the veggies (or nestle it in with the veggies if using the same skillet). Pour about half of the prepared glaze over the lamb and vegetables. Roast for 15-20 minutes, or until the lamb reaches your desired doneness.
6. Once roasted, remove the lamb from the oven and transfer it to a cutting board. Loosely tent it with foil and let it rest for 5-10 minutes. This is crucial for juicy lamb! While it rests, you can drizzle the remaining glaze over the veggies in the pan.
7. Slice the rested lamb tenderloin into medallions. Arrange them on a platter with the roasted tomatoes, red onion, and olives. Sprinkle with fresh parsley for that perfect finish. Enjoy!
💡 Tips:
- For super tender lamb, use a meat thermometer! Aim for 130-135°F for medium-rare. Remember, it'll cook a little more while resting.
- This lamb is fantastic with a simple couscous salad, some roasted potatoes, or just a fresh green salad to soak up all those Mediterranean flavors.
- No fresh rosemary or thyme? You can totally use 1 teaspoon dried rosemary and 1/2 teaspoon dried thyme instead, but fresh really makes a difference here if you have it.
- Got leftovers? Keep them in an airtight container in the fridge for up to 3 days. Just reheat gently so it doesn't dry out.
Nutrition: Calories: 500 kcal | Protein: 49 g