Oven-Roasted Mediterranean Lamb with Herb-Infused Olive Oil

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

Tender lamb leg roasted in the oven with garlic, rosemary, and thyme, finished with a drizzle of herb-infused olive oil for a fragrant Mediterranean touch. This mediterranean-inspired lamb ready in about 100 minutes pairs bone-in leg of lamb, thinly sliced garlic cloves, fresh rosemary sprigs for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 480 calories and feeds 6, 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.

Prep: 20 min Cook: 80 min Serves 6 Mediterranean cuisine 480 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 375°F. Using a sharp knife, make small incisions all over the 3 lb bone-in leg of lamb and insert thin slices from 6 garlic cloves and small rosemary leaves from 3 sprigs into the slits.
  2. Step 2: Rub the lamb evenly with 1/4 cup olive oil, 2 tsp sea salt, 1 tsp freshly ground black pepper, and the zest of 1 lemon. Place the lamb on a roasting rack in a roasting pan.
  3. Step 3: Roast the lamb for 1 hour and 20 minutes, or until an internal temperature of 135°F for medium-rare is reached, basting occasionally with pan juices.
  4. Step 4: While the lamb rests, combine juice of 1 lemon, remaining rosemary and thyme leaves (from 3 sprigs each) with 2 tbsp olive oil to create an herb-infused drizzle.
  5. Step 5: Slice the lamb and serve drizzled with the herb-infused olive oil for an aromatic finish.

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Frequently asked questions

How long does Oven-Roasted Mediterranean Lamb with Herb-Infused Olive Oil take to make?

Total time is about 100 minutes (20 min prep + 80 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Oven-Roasted Mediterranean Lamb with Herb-Infused Olive Oil?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep bone-in leg of lamb from drying out.

Can I substitute ingredients in Oven-Roasted Mediterranean Lamb with Herb-Infused Olive Oil?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Oven-Roasted Mediterranean Lamb with Herb-Infused Olive Oil for a different number of people?

The recipe is written for 6 servings. Multiply each ingredient by (your serving target / 6). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Oven-Roasted Mediterranean Lamb with Herb-Infused Olive Oil?

Mediterranean lamb like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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