Miso-Glazed Roasted Sweet Potatoes with Walnuts

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Caramelized sweet potatoes coated in savory-sweet miso glaze, topped with toasted walnuts for crunch. This japanese-inspired vegetarian (gluten-free, vegan) ready in about 40 minutes pairs sweet potatoes, white miso paste, maple syrup for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 320 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.

★ 3.7 (15 ratings) Prep: 15 min Cook: 25 min Serves 4 Japanese cuisine 320 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 425°F (220°C). Peel and cut 2 lbs sweet potatoes into 3/4-inch cubes, then toss with 1 tbsp sesame oil and salt in a single layer on a baking sheet.
  2. Step 2: Roast for 20 minutes, stirring once, until potatoes are tender and slightly caramelized around the edges.
  3. Step 3: While potatoes roast, whisk together 3 tbsp white miso paste, 2 tbsp maple syrup, and 1 tbsp water until smooth.
  4. Step 4: Drizzle miso glaze evenly over roasted potatoes, then return to oven for 5 more minutes until glossy and sticky.
  5. Step 5: Remove from oven and immediately sprinkle with 1/2 cup toasted walnuts and 1 tsp sesame seeds. Let rest 5 minutes before serving to allow glaze to set.

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Frequently asked questions

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

Total time is about 40 minutes (15 min prep + 25 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-Glazed Roasted Sweet Potatoes with Walnuts?

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 sweet potatoes from drying out.

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

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-Glazed Roasted Sweet Potatoes with Walnuts 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-Glazed Roasted Sweet Potatoes with Walnuts gluten-free?

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

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