Oven-Roasted Greek Lamb with Garlic and Oregano

By AislePrompt Editorial · Published 2026-05-10 · Updated 2026-05-10

Tender lamb leg marinated with garlic, oregano, and lemon, then slow-roasted to juicy perfection. This Greek-inspired lamb recipe, ready in about 165 minutes, pairs bone-in lamb leg, garlic cloves, fresh oregano for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 450 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.

Ingredients

• 3 pounds bone-in lamb leg
• 6, minced garlic cloves
• 2 tbsp, chopped fresh oregano
• 1/4 cup lemon juice
• 1/4 cup extra virgin olive oil
• 1 tbsp sea salt
• 1 tsp black pepper
• 1/2 cup water

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Instructions

1. Step 1: In a bowl, combine 6 minced garlic cloves, 2 tablespoons chopped fresh oregano, 1/4 cup lemon juice, 1/4 cup extra virgin olive oil, 1 tablespoon sea salt, and 1 teaspoon black pepper to create the marinade.
2. Step 2: Rub the marinade evenly over a 3-pound bone-in lamb leg, cover with plastic wrap, and refrigerate for at least 4 hours or overnight for best flavor.
3. Step 3: Preheat the oven to 325°F. Place the marinated lamb leg in a roasting pan and add 1/2 cup water to the pan to keep the meat moist.
4. Step 4: Roast the lamb for 2 to 2.5 hours, basting every 30 minutes with pan juices, until the internal temperature reaches 135°F for medium-rare.
5. Step 5: Remove the lamb from the oven and let it rest for 15 minutes before slicing thinly against the grain to serve.