English-Style Roasted Lamb with Rosemary and Garlic

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

This English-inspired lamb recipe, ready in about 90 minutes, pairs leg of lamb, fresh rosemary, garlic cloves for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 420 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: 75 min Serves 6 English cuisine 420 cal/serving
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Ingredients

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Instructions

  1. Step 1: Preheat oven to 375°F. In a small bowl, mix 3 tbsp chopped fresh rosemary, 6 minced garlic cloves, 3 tbsp olive oil, 2 tsp salt, 1 tsp black pepper, and 1 tsp lemon zest to form a herb paste.
  2. Step 2: Pat dry the 3 lb bone-in leg of lamb and rub the herb mixture evenly all over the surface, massaging into the meat.
  3. Step 3: Place the lamb on a roasting rack in a roasting pan and roast in the preheated oven for 1 hour 15 minutes, or until internal temperature reaches 135°F for medium-rare.
  4. Step 4: Remove from oven, tent with foil, and let rest for 15 minutes before slicing thinly against the grain. Serve with pan juices or mint sauce if desired.

Frequently asked questions

How long does English-Style Roasted Lamb with Rosemary and Garlic take to make?

Total time is about 90 minutes (15 min prep + 75 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 English-Style Roasted Lamb 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 leg of lamb from drying out.

Can I substitute ingredients in English-Style Roasted Lamb 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 English-Style Roasted Lamb 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 English-Style Roasted Lamb with Rosemary and Garlic?

English 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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