Oven-Roasted British Lamb with Rosemary and Shallots

By AislePrompt Editorial · ·

How this recipe was made — this recipe was drafted by AislePrompt's AI-assisted pipeline from technique templates and USDA-sourced nutrition data, and published by AislePrompt Editorial — see how AislePrompt recipes are developed and reviewed.

A tender British lamb roast infused with fresh rosemary and sweet shallots, perfect for a comforting dinner. This British-inspired lamb recipe, ready in about 75 minutes, pairs boneless lamb leg, fresh rosemary sprigs, shallots for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 450 calories and feeds 4, 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: 60 min Serves 4 British cuisine 450 cal/serving
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Ingredients

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Instructions

  1. Step 1: Preheat your oven to 375°F (190°C). Peel and halve 4 medium shallots and mince 4 garlic cloves. Pick and finely chop the leaves from 3 sprigs of fresh rosemary.
  2. Step 2: In a small bowl, combine 3 tablespoons olive oil, the chopped rosemary, minced garlic, 1 teaspoon sea salt, and 1/2 teaspoon freshly ground black pepper to create a herb marinade.
  3. Step 3: Pat dry 2 pounds boneless lamb leg, then rub the herb marinade thoroughly all over the surface. Scatter the halved shallots around the lamb in a roasting pan.
  4. Step 4: Roast the lamb in the preheated oven for 50-60 minutes, basting occasionally with pan juices, until the internal temperature reaches 135°F (57°C) for medium-rare.
  5. Step 5: Remove the lamb and shallots from the oven and transfer the lamb to a plate, tent with foil to rest for 15 minutes.
  6. Step 6: Pour 1/2 cup red wine into the roasting pan with the shallots and pan juices, then simmer over medium heat for 5 minutes until the sauce thickens slightly.
  7. Step 7: Slice the rested lamb into thick slices and serve with the shallots and red wine sauce spooned over the top.

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