Italian Slow-Roasted Lamb Shoulder with Rosemary and Garlic

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

Tender slow-roasted lamb shoulder infused with fresh rosemary and garlic, showcasing a classic regional Italian rustic preparation. This italian-inspired lamb ready in about 275 minutes pairs bone-in lamb shoulder, chopped fresh rosemary sprigs, sliced garlic cloves for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 550 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: 255 min Serves 6 Italian cuisine 550 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 300°F (150°C). Pat 4 lbs bone-in lamb shoulder dry with paper towels. Using a sharp knife, make 12 small incisions in the lamb and insert 6 sliced garlic cloves and 4 chopped rosemary sprigs evenly throughout.
  2. Step 2: Rub lamb shoulder all over with 3 tbsp olive oil, 2 tsp salt, and 1 tsp black pepper.
  3. Step 3: Place lamb in a large roasting pan with 1 large quartered yellow onion, 2 chopped carrots, and 2 chopped celery stalks arranged around it.
  4. Step 4: Pour 1 cup dry white wine into the pan, then cover tightly with foil.
  5. Step 5: Roast in the preheated oven for 4 hours, basting every hour with pan juices, until the lamb is tender and falling off the bone.
  6. Step 6: Remove foil and increase oven temperature to 425°F (220°C). Roast uncovered for an additional 15 minutes until the exterior is browned and crisp.
  7. Step 7: Let lamb rest for 15 minutes before slicing and serving with the roasted vegetables.

Equipment for this recipe

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Frequently asked questions

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

Total time is about 275 minutes (20 min prep + 255 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 Italian Slow-Roasted Lamb Shoulder with Rosemary and Garlic?

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 Italian Slow-Roasted Lamb Shoulder with Rosemary and Garlic?

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

Italian 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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