Slow-Roasted Lamb Shoulder with Lemon and Rosemary

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

Tender Australian lamb shoulder slow-roasted with fresh lemon slices and fragrant rosemary for a juicy, flavorful main dish. This australian-inspired lamb ready in about 285 minutes pairs lamb shoulder, bone-in, fresh rosemary sprigs, medium lemon fresh lemon, thinly sliced 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: 15 min Cook: 270 min Serves 6 Australian cuisine 550 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 300°F (150°C). Place 4 lbs bone-in lamb shoulder in a roasting pan. Rub the lamb all over with 3 tbsp olive oil, 6 minced garlic cloves, 2 tsp sea salt, and 1 tsp black pepper.
  2. Step 2: Tuck 4 sprigs of fresh rosemary and arrange thin slices from 1 medium lemon evenly over the lamb shoulder.
  3. Step 3: Pour 1 cup water into the pan to create steam and cover tightly with foil. Roast in the oven for 4 to 4.5 hours until the meat is fall-apart tender.
  4. Step 4: Remove foil and increase oven temperature to 425°F (220°C). Roast uncovered for 15 minutes to brown the surface and crisp the edges. Rest the lamb for 15 minutes before carving.

Equipment for this recipe

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Frequently asked questions

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

Total time is about 285 minutes (15 min prep + 270 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 Lemon 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 lamb shoulder, bone-in from drying out.

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

Australian 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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