A cross between a French fry and hashbrowns, these crispy roasted cubed sweet potatoes make a deliciously healthy addition to dinner, salads, and everyday side dishes.
It’s recipes like this that remind me not to underestimate the power of the oven. Add a little heat and some oil to transform your vegetables and starches. Roasting caramelizes the natural sugars in sweet potatoes and gives them a soft middle with a crispy-edged texture.
You’ll be craving these roasted sweet potatoes at least once a week.
Roasting Cubed Sweet Potatoes
It’s incredible how a simple process, like roasting, can elevate everyday sweet potatoes into a top-notch in flavor and texture side dish. Before I share the recipe, here are helpful tips so they cook into orange gems that everyone will be grabbing:
Use parchment paper
Not only does this prevent the potatoes from sticking to the baking sheet, but it makes less clean up for you.
We want the potatoes to caramelize and get a little browned. Crowding the pieces too close together will cause them to steam and become soggy.
Give it a toss
Halfway through baking, carefully use a spatula to toss the potato pieces, so they brown evenly.
Don’t skimp on the oil
Even though we use parchment, the oil helps the potatoes brown and crisp up. You don’t need much just a tablespoon or two.
Sweet potatoes are extremely versatile and taste amazing with any number of spices and seasonings. You can toss them in:
- Roasted Vegetable Seasoning
- Homemade Taco Seasoning
- cinnamon + salt
- garlic powder + salt + black pepper
How to Prep a Sweet Potato for Roasting
There is no need to boil the sweet potatoes before roasting. It’s unnecessary and creates more work for you. The oven gives enough heat to cook them through to achieve a soft center and crisp up on the edges.
Here’s how to prep cubed sweet potatoes for the oven:
- Rinse and lightly scrub the potatoes
- Pat dry
- Peel, if you wish (it’s optional)
- Cut into 1-inch cube
How to Cube a Sweet Potato for Roasting
The size to cut the sweet potato into cubes depends on how crispy you like them. Smaller cubes, about ½ to ¾-inch, will be crisper like breakfast potatoes, while larger cubes, 1-inch, are tender but still have golden brown edges.
To easily cut them, use a chef knife to slice a small piece from the potato lengthwise, then lay it flat. This way, it won’t roll around.
How to Roast Cubed Sweet Potatoes
Grab a large sheet pan, those ingredients, and let’s make some crispy roasted sweet potatoes.
Preheat the oven to 400F and line a large baking sheet with parchment paper.
- Toss with oil and salt
Place the sweet potato cubes onto the baking sheet and drizzle with olive oil. Season with salt and your choice of seasonings. Toss to combine.
Spread the potatoes in an even layer onto the baking sheet and roast for 30 minutes or until the edges are golden brown and the centers fork tender.
How to Prep Roasted Cubed Sweet Potatoes Ahead
You can prep sweet potatoes before roasting on meal-prep day and after being roasted for a heat-and-serve option.
To prep sweet potatoes ahead of time without roasting; after dicing, refrigerate the sweet potato cubes in an airtight container filled with water for up to 2 days. The water prevents them from drying out and turning brown.
Before cooking, drain the water and pat the potatoes thoroughly dry with a clean kitchen towel to prevent them from steaming.
I like having roasted sweet potato cubes around as an easy starch to top over salads or to serve alongside dinner. They can be cooked entirely ahead of time and refrigerated for up to 4 days. Just give them a quick reheat in the microwave or in the oven at 400F for 10 minutes or until crisp and heated through.
How Long to Roast Cubed Sweet Potatoes
At 400F, these 1-inch sweet potato cubes take about 30 to 35 minutes to cook. While you can roast these at a higher or lower temperature, 400F is the magic number since the potatoes brown in time with cooking.
Below are the cook times for 1-inch cubed sweet potatoes at different temperatures.
|350 F||40 minutes|
|375 F||35 minutes|
|400 F||30 minutes|
|425 F||25 minutes|
What Else to Roast with Sweet Potatoes
At 400F and 35 minutes, you can roast several other ingredients with sweet potatoes, making it an excellent “starch” option for my sheet pan dinners.
Proteins to Roast with Sweet Potatoes
Below you’ll find a chart of different cuts of meat to roast at 400F with sweet potatoes. While chicken thighs can take longer than 25 minutes, you can place them on a separate sheet pan and baking rack. Or remove the potatoes and veggies from the baking sheet once they are done and let the chicken finish cooking.
|Boneless, skinless chicken thighs||25 mins or |
internal temp 165F
|Boneless, skinless chicken breasts||35 mins or |
internal temp 175F
|Salmon fillets||10-12 mins or|
internal temp 145F
|Smoked chicken sausage||24 mins|
Vegetables you can Roast with Crispy Sweet Potatoes
You can season and toss these veggies onto the same sheet pan as the sweet potatoes but try to keep them separate since some veggies may finish before the potatoes do.
- Brussels sprouts, halved or quartered (35 minutes)
- broccoli florets (20 minutes)
- red cabbage (about 25 minutes)
- beets (about 25 minutes)
- cauliflower florets (20-25 minutes)
What to Serve with Roasted Cubed Sweet Potatoes
Once they’re out of the oven, you can top them over salads, dip them with hummus for a quick snack or serve them:
Crispy Roasted Cubed Sweet Potatoes
- 2 medium sweet potatoes, cut into 1-inch cubes
- 1 ½ tablespoons olive oil
- ½ teaspoon salt
- 1 teaspoon roasted veggie seasoning
- Preheat the oven to 400F and line a large baking sheet with parchment paper.
- Place the potatoes onto the baking sheet and drizzle with olive oil. Season with salt and seasonings. Toss to combine and spread out in an even layer onto the baking sheet.
- Bake for 30 minutes or until the potatoes are tender through the center and edges are lightly browned.
- Remove from the oven and serve.