These roasted sweet potatoes in the oven are tender on the inside with golden, caramelized edges. Simple ingredients make these sweet and savory cubes an easy side dish for any meal!

Love sweet potato recipes? Other favorites include baked sweet potato fries and oven baked sweet potatoes.

Roasted sweet potatoes in the oven on a sheet pan.

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Key Takeaways: Oven Roasted Sweet Potatoes

  • Simple ingredients: Just 5 ingredients and 10 minutes of prep for an easy side dish that goes with almost anything.
  • Perfectly roasted: Roasting cubed sweet potatoes at 425°F brings out their natural sweetness and gives them delicious caramelized edges.
  • Easy to customize: I love the sweet and savory flavor from chili powder, but you can switch up the seasonings or add brown sugar for a sweeter version.

Why I Love This Recipe

I’m going to be honest, I used to not love sweet potatoes, but now I’m obsessed! Whether it’s this roasted sweet potatoes recipe, sweet potato casserole, or savory scalloped sweet potatoes, they’re all so delicious!

These diced sweet potatoes in the oven are one of my favorite easy sides because they take just minutes to prep and go with almost anything. We love serving them with roasted chicken or oven baked steak, and they’re just as delicious for a holiday dinner as they are on a busy weeknight.

XO - Jamielyn

Recipe Ingredients

Cutting sweet potatoes into cubes.

Find the full printable recipe with specific measurements below.

  • Sweet potatoes: The main attraction of this dish. I like to peel the potatoes, but you can leave the peels on if you prefer.
  • Olive oil: This gives something for the seasoning to stick to, adds flavor, and helps the potatoes caramelize a bit.
  • Seasonings: You can play around with seasoning, but my standard is salt, pepper, and chili powder.

Favorite Seasoning Combinations

I like to keep it simple when adding the seasoning to the cubed sweet potatoes. Below is my go-to combination, however, I’ve also listed other sweet and spicy versions as well.

  • Favorite combination: Olive oil, sea salt, black pepper, chili powder
  • Sweet version: Mix in 1-2 Tablespoons brown sugar and omit the chili powder.
  • Spicy version: Add 1/2 teaspoon smoked paprika and 1/2 teaspoon garlic powder.
  • Fresh herbs: Try adding finely chopped thyme, rosemary, or sage.
  • Other spices to use: Italian seasoning, cumin, onion powder, rosemary, etc.

How to Roast Cubed Sweet Potatoes in the Oven

Washed sweet potatoes on the counter ready to be cubed and roasted in oven.

Step 1: Wash and scrub the sweet potatoes well, then pat dry. Peel them if desired, trim the ends and slice into ½-inch rounds.

Cutting sweet potatoes into cubes on a cutting board.

Step 2: Cut each round into ½-inch cubes, keeping them about the same size so they roast evenly.

Diced sweet potatoes on cutting board ready to be roasted in the oven.

Step 3: Spread the cubed sweet potatoes on a prepared sheet pan and drizzle with olive oil. Sprinkle with salt, pepper and chili powder, then toss until evenly coated.

Roasted sweet potato cubes on a baking sheet.

Step 4: Roast at 425°F for about 30 minutes, tossing halfway through. They’re ready when fork-tender and golden brown. Add more seasoning to taste and serve warm!

Roasting Tips

  • Dry them well. After washing, pat the sweet potatoes dry so excess moisture doesn’t interfere with roasting.
  • Keep cubes uniform. I prefer ½-inch cubes, but you can cut them into larger 1-inch pieces. Just allow extra roasting time.
  • Prepare the pan. Lightly grease your baking sheet or line it with parchment paper to prevent sticking.
  • Don’t overcrowd. Spread cubed potatoes in a single layer with space between them so they roast instead of steam. Use two pans if needed for perfect sweet potatoes in the oven.
  • Toss halfway through. Flip the sweet potatoes halfway through baking so they brown evenly without burning.
Roasted sweet potatoes in a bowl.

Air Fryer Method

If you love the air fryer as much as I do, you’ll be happy to know that you can make roasted air fryer sweet potato cubes that taste equally as delicious! Simply roast in the air fryer at 400°F for about 13 to 15 minutes.

Favorite Ways to Serve Them

These roasted sweet potatoes are delicious as a side dish, but I also love adding them to salads, bowls and even breakfast!

Roasted Sweet Potatoes FAQs


Do I have to peel the sweet potatoes?

Honestly, no you don’t have to peel them. My preference is to peel them, but if you don’t mind the skin, feel free to leave it on. Just wash them well and trim off any bruised parts.

Do you need to parboil sweet potatoes before roasting?

No need to parboil! Roasting sweet potatoes at a high temperature makes them tender on the inside and golden brown on the outside in about 30 minutes.

Can you overcook sweet potatoes?

Yes! Roasting sweet potatoes too long can cause the edges to dry out and the centers to become mushy. Check for tenderness toward the end of baking and remove them once they’re fork-tender.


Should I roast sweet potatoes at 400°F or 425°F?

Both temperatures work, but I prefer roasting cubed sweet potatoes at 425°F. The higher heat helps them brown and caramelize while keeping the centers tender. You can roast them at 400°F, but they may need an extra 5 minutes or so.


Do you need to soak diced sweet potatoes before roasting?

No, there’s no need to soak sweet potatoes before roasting! Soaking can help remove some surface starch when making sweet potato fries, but it’s unnecessary for roasted cubes. Just wash, dry, cut and season before placing them in the oven

Roasted sweet potatoes on a silver spoon.

Can’t get enough sweet potatoes? Try these Instant Pot mashed sweet potatoes or sweet potato casserole with marshmallows!

More Easy Veggie Recipes

close up of roasted sweet potatoes on baking sheet

Roasted Sweet Potatoes

5 from 19 votes
Recipe by: Jamielyn Nye
Prep Time: 10 minutes
Cook Time: 30 minutes
Total Time: 40 minutes
Servings: 6
Easy oven roasted sweet potatoes made with just 5 simple ingredients. Perfectly crispy and caramelized with amazing flavor! 
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Ingredients 

  • 3 sweet potatoes , peeled and cubed (4-5 cups)
  • 2-3 Tablespoons olive oil
  • ¾ teaspoon fine sea salt , plus more to taste
  • ¼ teaspoon Freshly ground black pepper , plus more to taste
  • ¼ teaspoon chili powder , plus more to taste

Instructions

  • Prep. Preheat the oven to 425°F. Spray a baking sheet with nonstick spray.
  • Drizzle sweet potatoes with olive oil. Place the 3 cubed sweet potatoes on the baking sheet. Drizzle with 2-3 Tablespoons olive oil. Sprinkle with 3/4 teaspoon salt, 1/4 teaspoon pepper, and 1/4 teaspoon chili powder.
  • Roast. Bake 30 minutes, tossing halfway through. Add more seasoning, if needed.

Last step: Please leave a comment and rating after you make the recipe.

Notes

Sweeter version: Mix in 1 to 2 Tablespoons brown sugar and omit the chili powder.
More seasoning: Add 1/2 teaspoon smoked paprika and 1/2 teaspoon garlic powder. 
Storage: Store in an airtight container in the refrigerator up to 5 days. 

Nutrition

Calories: 139kcal, Carbohydrates: 23g, Protein: 2g, Fat: 5g, Saturated Fat: 1g, Polyunsaturated Fat: 1g, Monounsaturated Fat: 3g, Sodium: 354mg, Potassium: 384mg, Fiber: 3g, Sugar: 5g, Vitamin A: 16056IU, Vitamin C: 3mg, Calcium: 35mg, Iron: 1mg

Nutrition provided is an estimate. It will vary based on specific ingredients used.