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Oven Roasted Sweet Potatoes with Parmesan & Garlic Butter

posted December 8, 2023 by
Cassandra Morris
These roasted sweet potatoes are seasoned in garlic, butter, Italian seasoning, and parmesan. It is a delicious appetizer or side thatโ€™s sweet and simple.

Iโ€™m going back to basics with this roasted sweet potato recipe, you guys. The star of todayโ€™s recipe is sweet potatoes. The orange kind โ€“ not to be confused with yam, my friends.

There are so many amazing ways to cook sweet potatoes: mashed, julienned into sweet potato fries, atop a hearty shepherdโ€™s pie, and stuffed with black beans.

Today, weโ€™ll roast them in a garlic butter seasoning topped with grated parmesan cheese. Perfectly roasted, crispy, and well-flavored, it can easily serve as a carb replacement in a meal or side dish with other mains. I love its natural sweetness, but even more so with a dip like tzatziki.ย 

Recipe Ingredients

The ingredients for oven-roasted sweet potatoes are few and uncomplicated, such as: 

  • Sweet potatoes โ€“ Fresh sweet potatoes are ideal for this recipe rather than frozen pre-bagged ones. Peel and slice 4 medium to large spuds into rounds.
    • Pro Tip: When buying sweet potatoes, look for deep orange skin that is smooth. The surface should have no wrinkles, bruises, or cracks. 
  • Garlic โ€“ This recipe calls for 6 garlic cloves, promising the ultimate flavor. 
  • Olive oil and butter โ€“ Olive oil and butter will accentuate the flavor of the sweet potatoes and garlic. Plus, itโ€™ll help the sweet potatoes get crispy in the oven. 
  • Parmesan cheese โ€“ Parmesan cheese is grated and sprinkled atop the sweet potatoes. Savory and crispy! 
  • Italian seasoning โ€“ Add a touch of herbs from your favorite Italian blend, or mix dried oregano and thyme in its place. 

Step-by-Step Instructions

All it takes to make this roasted sweet potato recipe are five easy steps and 15 minutes of prep time. A piece of cake!  

Step One: Preheat your oven to 400ยฐF. 

Step Two: Peel the sweet potatoes and slice them into even rounds (thinner rounds will be crispier, and require less baking time). Lightly butter a large baking dish and arrange the sweet potatoes into a spiral. 

  • Pro Tip: Alternatively, arrange them on a baking sheet lined with parchment paper. 

Step Three: Whisk olive oil, melted butter, garlic, parmesan cheese, and Italian seasoning in a small bowl and mix well. 

  • Pro Tip: Add your own twist to the garlic butter oil with flavorful ingredients such as chili powder or curry powder.

Step Four: Baste the sweet potatoes with the garlic butter oil, coating them evenly. 

Step Five: Sprinkle with parmesan cheese, cover with tin foil and bake in your preheated oven for 1 hour. After 1 hour, remove the dish from the oven, take off the tin foil, and bake for an additional 15 minutes. Season with salt and pepper to taste. Serve warm. 

  • Pro Tip: The roasting time will depend on the thickness of your sweet potato slices: the thicker they are, the longer they will take. 

Bon Appetit!

Garlic-butter-parmesan-roasted-sweet-potatoes | cookingwithcassandra.com

Storage Instructions

Donโ€™t let these good spuds go to waste. If you have leftover roasted sweet potatoes, keep them to be enjoyed in the same way. Or, use them with other dishes (perhaps as a topping over summer salads and nachos, or as a snack dipped in tangy tzatziki or guacamole)

To store in the fridge: Cool the roasted potatoes for up to 2 hours. Seal and keep in the fridge to last for 2 days. To serve, reheat them in the oven, microwave, frying pan, or grill โ€“ whichever is easiest. 

To freeze for up to 1 month: Lay out the sweet potatoes on a baking sheet or tray with space in between each slice. When the potatoes have frozen, pop them in a freezer bag (this makes it easier to defrost individual slices as needed). To reheat, thaw it in the microwave or in the fridge overnight. Then, reheat until piping hot. 

Oven Roasted Sweet Potatoes with Parmesan & Garlic Butter | cookingwithcassandra.com

Garlic Butter Roasted Sweet Potato Recipe

These roasted sweet potatoes are seasoned in garlic, butter, Italian seasoning, and parmesan. It is a delicious appetizer or side thatโ€™s sweet and simple.
Prep Time 20 minutes
Cook Time 1 hour 15 minutes
Total Time 1 hour
Servings 6

Ingredients

  • 4 medium to large sweet potatoes peeled and sliced
  • 6 garlic cloves minced
  • 3 tablespoons extra-virgin olive oil
  • 4 tablespoons butter melted
  • 3/4 cup parmesan cheese freshly grated
  • 1 tablespoon Italian seasoning

Instructions

  • Preheat your oven to 400 degrees F.
  • Peel the sweet potatoes and cut them into slices. Lightly butter a large rectangular or oval baking dish.
  • Arrange the sweet potato slices in the dish by stacking them together, then fan them out around the edges and into the center of the baking dish.
  • In a small bowl, whisk together the oil, melted butter, garlic, 1/2 cup of Parmesan cheese, and Italian seasoning until well combined.
  • Pour the mixture over the sweet potatoes in the baking dish, making sure they are evenly coated.
  • Evenly sprinkle the remaining 1/4 cup of parmesan cheese on top. Cover the dish with tin foil and bake for 1 hour.
  • After 1 hour, remove the dish from the oven, remove tin foil and bake for an additional 15 minutes. Sweet potatoes are done when they can be easily pierced with a fork.
  • Serve warm, and garnish with fresh thyme. Bon Appetit!
Cassandra | Cooking With Cassandra

Hi, I’m Cassandra!

ย Iโ€™m so happy youโ€™re here! Iโ€™m here to spill the beans (and maybe some wine) on the best, tested-till-perfect recipes for every occasion. Whether youโ€™re a beginner or a seasoned pro, all of my recipes come with clear, easy-to-follow step-by-step directions, plus helpful tips and tricks to make cooking delicious meals easy for everyone. Letโ€™s get cooking and make every meal a success!

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Cassandra | Cooking With Cassandra

Hi, I'm Cassandra!

ย Iโ€™m so happy youโ€™re here! Iโ€™m here to spill the beans (and maybe some wine) on the best, tested-till-perfect recipes for every occasion. Whether youโ€™re a beginner or a seasoned pro, all of my recipes come with clear, easy-to-follow step-by-step directions, plus helpful tips and tricks to make cooking delicious meals easy for everyone. Letโ€™s get cooking and make every meal a success!

More about me

Never miss a recipe!

Sign up for free recipes straight to your inbox:

Unsubscribe at any time.

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Cooking dinner doesnโ€™t have to take all night. Subscribe & receive my favourite 10 Quick & Easy Dinner Recipes in an easy e-cookbook format!

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