Roasted Lemon-Garlic Chicken Thighs with Sweet Potato Mash

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

Tender roasted chicken thighs infused with lemon and garlic, served with a velvety sweet potato mash seasoned with fresh herbs. This whole30 (whole30, gluten free) ready in about 60 minutes pairs bone-in, skin-on chicken thighs, olive oil, fresh lemon juice 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: 45 min Serves 4 450 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 425°F. In a large bowl, whisk together 3 tbsp olive oil, 2 tbsp fresh lemon juice, 4 minced garlic cloves, 1 tbsp fresh thyme leaves, 1/2 tsp black pepper, and 1/2 tsp sea salt. Add 6 bone-in, skin-on chicken thighs and toss to coat evenly. Let marinate 10 minutes.
  2. Step 2: Arrange the marinated chicken thighs skin side up on a baking sheet lined with parchment paper. Roast in the oven for 35-40 minutes until the skin is golden and crispy and the internal temperature reaches 165°F.
  3. Step 3: While chicken roasts, place 2 large peeled and cubed sweet potatoes in a pot and cover with cold water. Bring to a boil over high heat and cook for 15 minutes until tender when pierced with a fork. Drain and return to pot.
  4. Step 4: Mash the sweet potatoes with 1/4 cup full-fat coconut milk, 1/2 tsp sea salt, and 2 tbsp chopped fresh parsley until smooth and creamy. Adjust seasoning to taste.
  5. Step 5: Serve the roasted chicken thighs atop the sweet potato mash, spooning any pan juices over the top for extra flavor.

Equipment for this recipe

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Frequently asked questions

How long does Roasted Lemon-Garlic Chicken Thighs with Sweet Potato Mash take to make?

Total time is about 60 minutes (15 min prep + 45 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 Roasted Lemon-Garlic Chicken Thighs with Sweet Potato Mash?

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 olive oil from drying out.

Can I substitute ingredients in Roasted Lemon-Garlic Chicken Thighs with Sweet Potato Mash?

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 Roasted Lemon-Garlic Chicken Thighs with Sweet Potato Mash 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.

Is Roasted Lemon-Garlic Chicken Thighs with Sweet Potato Mash whole30?

Yes — this recipe is tagged whole30, gluten free, dairy free, paleo based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.

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