Slow-Roasted Lamb Shoulder with Garlic and Rosemary

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Succulent lamb shoulder slow-roasted with garlic, rosemary, and lemon, resulting in tender, flavorful meat. This mediterranean-inspired lamb ready in about 230 minutes pairs bone-in lamb shoulder, sliced thin garlic cloves, fresh rosemary sprigs for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 620 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.

★ 4.4 (8 ratings) Prep: 20 min Cook: 210 min Serves 6 Mediterranean cuisine 620 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 300°F. Using a sharp knife, make 12 small incisions all over 3 lbs bone-in lamb shoulder and insert 6 thinly sliced garlic cloves and pieces of 4 fresh rosemary sprigs into the slits.
  2. Step 2: Rub the lamb all over with 3 tbsp extra virgin olive oil, 2 tsp salt, 1 tsp black pepper, and 1 tbsp lemon zest, massaging the seasonings into the meat.
  3. Step 3: Place the lamb in a roasting pan and pour 1 cup water or broth into the bottom of the pan to keep the meat moist.
  4. Step 4: Cover the roasting pan tightly with foil and roast the lamb in the preheated oven for 3 to 3.5 hours, until the meat is fork-tender and easily pulls apart.
  5. Step 5: Remove the foil and increase oven temperature to 450°F. Roast uncovered for an additional 15 minutes to crisp the exterior.
  6. Step 6: Let the lamb rest for 15 minutes before carving and serving.

Frequently asked questions

How long does Slow-Roasted Lamb Shoulder with Garlic and Rosemary take to make?

Total time is about 230 minutes (20 min prep + 210 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 Slow-Roasted Lamb Shoulder with Garlic and Rosemary?

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 lamb shoulder from drying out.

Can I substitute ingredients in Slow-Roasted Lamb Shoulder with Garlic and Rosemary?

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 Slow-Roasted Lamb Shoulder with Garlic and Rosemary 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 Slow-Roasted Lamb Shoulder with Garlic and Rosemary?

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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