Oven-Roasted Lamb with Greek Lemon and Oregano Marinade

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

Tender lamb leg marinated in zesty lemon juice, garlic, and oregano, then slow-roasted to juicy perfection. This mediterranean-inspired lamb ready in about 135 minutes blends bone-in leg of lamb, fresh lemon juice, extra virgin olive oil into a versatile sauce that lifts everything from grain bowls and roasted vegetables to grilled proteins — a small-batch staple worth keeping in the fridge. Each serving lands at about 480 calories and feeds 6, so a small batch covers several meals across the week without taking over the fridge. 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: 15 min Cook: 120 min Serves 6 Mediterranean cuisine 480 cal/serving
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Ingredients

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Instructions

  1. Step 1: In a mixing bowl, combine 1/4 cup fresh lemon juice, 1/4 cup extra virgin olive oil, 4 minced garlic cloves, 2 tbsp dried oregano, 1 tbsp sea salt, and 1 tsp freshly ground black pepper. Whisk until well blended.
  2. Step 2: Place the 3 lbs bone-in leg of lamb in a large resealable bag or shallow dish and pour the marinade over it, ensuring the meat is well coated. Seal or cover and refrigerate for at least 4 hours, preferably overnight.
  3. Step 3: Preheat the oven to 325°F (160°C). Remove the lamb from the marinade and place it on a roasting rack inside a roasting pan. Pour 1/2 cup water into the pan to keep the meat moist.
  4. Step 4: Roast the lamb for approximately 1 hour 45 minutes to 2 hours, basting every 30 minutes with the pan juices, until an internal temperature of 135°F (57°C) for medium-rare is reached.
  5. Step 5: Remove the lamb from the oven, tent loosely with foil, and let rest for 15 minutes before slicing to allow the juices to redistribute.

Frequently asked questions

How long does Oven-Roasted Lamb with Greek Lemon and Oregano Marinade take to make?

Total time is about 135 minutes (15 min prep + 120 min cook). A small batch typically covers several meals in the week — store as the recipe directs.

How do I store leftover Oven-Roasted Lamb with Greek Lemon and Oregano Marinade?

Transfer to an airtight jar and refrigerate for up to 5–7 days. Most sauces freeze well for up to 2 months — portion into small containers or freezer bags so you can thaw only what you need. Stir before serving; cream- or yogurt-based sauces may separate on standing.

Can I substitute ingredients in Oven-Roasted Lamb with Greek Lemon and Oregano Marinade?

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 Lamb with Greek Lemon and Oregano Marinade 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 Lamb with Greek Lemon and Oregano Marinade?

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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