Miso-Roasted Sweet Potatoes with Thyme

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

Sweet potatoes caramelized with a savory miso glaze, enhanced by fresh thyme for a perfect vegetarian side. This japanese-inspired vegan (gluten-free, sugar-free) ready in about 45 minutes pairs peeled and cubed sweet potatoes, white miso paste, olive oil for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 180 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: 10 min Cook: 35 min Serves 4 Japanese cuisine 180 cal/serving
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Ingredients

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Instructions

  1. Step 1: Preheat oven to 425°F. Toss 2 lbs peeled and cubed sweet potatoes with 1 tbsp olive oil, 2 tbsp white miso paste, 1 tbsp maple syrup, and 1/2 tsp salt until evenly coated.
  2. Step 2: Spread sweet potatoes in a single layer on a parchment-lined baking sheet. Sprinkle with 1 tbsp chopped fresh thyme.
  3. Step 3: Roast for 25-30 minutes, flipping once halfway, until edges are golden brown and tender when pierced with a fork.

Frequently asked questions

How long does Miso-Roasted Sweet Potatoes with Thyme take to make?

Total time is about 45 minutes (10 min prep + 35 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 Miso-Roasted Sweet Potatoes with Thyme?

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 white miso paste from drying out.

Can I substitute ingredients in Miso-Roasted Sweet Potatoes with Thyme?

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 Miso-Roasted Sweet Potatoes with Thyme 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 Miso-Roasted Sweet Potatoes with Thyme gluten-free?

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

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