Sheet Pan Harissa-Spiced Lamb with Roasted Root Vegetables

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

Tender lamb leg slices and hearty root vegetables roasted together on a sheet pan with smoky, spicy harissa for a flavorful one-pan meal. This mediterranean-inspired lamb ready in about 45 minutes pairs large, cut into wedges red onion, harissa paste, olive oil for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 480 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: 30 min Serves 4 Mediterranean cuisine 480 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 425°F. In a large bowl, whisk together 3 tbsp harissa paste, 4 tbsp olive oil, 1 tsp ground cumin, 1 tsp smoked paprika, 1 1/2 tsp salt, and 1 tsp black pepper until smooth.
  2. Step 2: Add 1.5 lbs sliced lamb leg, 3 peeled and chopped carrots, 2 peeled and chopped parsnips, and 1 large cut red onion wedges to the bowl. Toss everything thoroughly to coat with the harissa mixture.
  3. Step 3: Spread the lamb and vegetables in a single layer on a large rimmed baking sheet.
  4. Step 4: Roast in the preheated oven for 25-30 minutes, stirring halfway through, until lamb is cooked to medium (145°F internal) and vegetables are tender and caramelized at edges.
  5. Step 5: Remove from oven and sprinkle with 1/4 cup chopped fresh cilantro. Serve warm with lemon wedges for squeezing over.

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Frequently asked questions

How long does Sheet Pan Harissa-Spiced Lamb with Roasted Root Vegetables take to make?

Total time is about 45 minutes (15 min prep + 30 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 Sheet Pan Harissa-Spiced Lamb with Roasted Root Vegetables?

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 harissa paste from drying out.

Can I substitute ingredients in Sheet Pan Harissa-Spiced Lamb with Roasted Root Vegetables?

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 Sheet Pan Harissa-Spiced Lamb with Roasted Root Vegetables for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). 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 Sheet Pan Harissa-Spiced Lamb with Roasted Root Vegetables?

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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