Herb-Roasted Sweet Potatoes with Sage Butter

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Crispy sweet potatoes infused with rosemary and thyme, topped with a rich sage-infused butter glaze. This french-inspired quick meals (vegan-friendly) ready in about 60 minutes pairs medium, peeled and cubed sweet potatoes, rosemary sprigs, thyme sprigs for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 210 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.

★ 4.0 (13 ratings) Prep: 25 min Cook: 35 min Serves 4 French cuisine 210 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 400°F (200°C). Toss sweet potatoes with 1 tsp salt, 1/2 tsp pepper, and 1 tbsp olive oil. Spread in a single layer on a baking sheet.
  2. Step 2: Roast for 25-30 minutes until edges are crispy and tender. Remove from oven and sprinkle with rosemary and thyme.
  3. Step 3: Melt 3 tbsp butter in a small saucepan. Add sage leaves and cook for 2 minutes until fragrant. Drizzle over roasted sweet potatoes and serve warm.

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Frequently asked questions

How long does Herb-Roasted Sweet Potatoes with Sage Butter take to make?

Total time is about 60 minutes (25 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 Herb-Roasted Sweet Potatoes with Sage Butter?

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 rosemary sprigs from drying out.

Can I substitute ingredients in Herb-Roasted Sweet Potatoes with Sage Butter?

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 Herb-Roasted Sweet Potatoes with Sage Butter 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 Herb-Roasted Sweet Potatoes with Sage Butter vegan-friendly?

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

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