Lemon-Thyme Roasted Lamb Chops with Garlic Mashed Potatoes

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

Succulent lamb chops roasted with fresh lemon and thyme, paired with creamy mashed potatoes infused with roasted garlic for a comforting and elegant dinner. This mediterranean-inspired lamb ready in about 50 minutes pairs lamb rib chops, fresh thyme sprigs, lemon zest for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 550 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: 20 min Cook: 30 min Serves 4 Mediterranean cuisine 550 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 400°F. In a small bowl, mix 3 tbsp olive oil, 1 tbsp lemon zest, 1 tsp salt, and 1/2 tsp black pepper. Rub this mixture onto 8 lamb rib chops and tuck 4 fresh thyme sprigs between the chops on a baking sheet.
  2. Step 2: Roast the lamb chops in the oven for 15-18 minutes for medium-rare, turning halfway through until the internal temperature reaches 135°F. Remove and let rest for 5 minutes.
  3. Step 3: While lamb roasts, place 2 lbs peeled and quartered yellow potatoes and 6 whole garlic cloves in a large pot. Cover with water and add 1/2 tsp salt. Bring to a boil and cook for 20 minutes until potatoes are fork-tender.
  4. Step 4: Drain potatoes and garlic, then mash with 4 tbsp unsalted butter and 1/2 cup whole milk until smooth and creamy. Season with remaining 1 tsp salt and 1/2 tsp black pepper.
  5. Step 5: Serve the lemon-thyme roasted lamb chops alongside the garlic mashed potatoes.

Equipment for this recipe

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Frequently asked questions

How long does Lemon-Thyme Roasted Lamb Chops with Garlic Mashed Potatoes take to make?

Total time is about 50 minutes (20 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 Lemon-Thyme Roasted Lamb Chops with Garlic Mashed Potatoes?

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 rib chops from drying out.

Can I substitute ingredients in Lemon-Thyme Roasted Lamb Chops with Garlic Mashed Potatoes?

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 Lemon-Thyme Roasted Lamb Chops with Garlic Mashed Potatoes 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 Lemon-Thyme Roasted Lamb Chops with Garlic Mashed Potatoes?

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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