These Garlic Parmesan Roasted Sweet Potatoes are tender, savory, and packed with incredible flavor. Each slice is coated in a buttery garlic-Parmesan mixture and roasted until perfectly golden. This simple side dish is naturally gluten-free, lower in carbs than most traditional sweet potato dishes, and pairs beautifully with holiday dinners or easy weeknight meals.
Whether you’re serving turkey, chicken, pork, or a beautiful prime rib, these crispy roasted sweet potatoes will fit right in at your table.
Ingredients for Garlic Parmesan Roasted Sweet Potatoes
- 2 sweet potatoes, peeled and thinly sliced
- 2 teaspoons minced garlic
- 1 tablespoon olive oil
- 2 tablespoons melted butter
- 4 tablespoons grated Parmesan cheese
- ½ teaspoon garlic salt
- ½ teaspoon freshly cracked pepper
- ½ teaspoon Italian seasoning
- Fresh thyme, for topping
Why You’ll Love This Recipe
Unlike many sweet potato side dishes that lean sugary, this recipe is completely savory. The garlic, Parmesan, herbs, and butter create a rich, comforting flavor that caramelizes beautifully in the oven. It’s quick, easy, and elegant – perfect for both busy weeknights and special celebrations.
How to Roast Sweet Potatoes
This method is incredibly simple and yields perfectly roasted, flavorful potato slices every time.
- Prep the potatoes:
Peel and slice your sweet potatoes into thin, even rounds. Preheat the oven to 400°F (200°C). - Season:
Add the sliced sweet potatoes to a resealable bag. Pour in the olive oil, melted butter, garlic, Parmesan, salt, pepper, and Italian seasoning. Seal and shake until every slice is coated. - Arrange:
Lightly butter a baking dish. Arrange the sweet potato slices in a spiral pattern (or simply spread them in a single layer). Sprinkle with fresh thyme and more Parmesan if desired. - Roast:
Bake for 30–35 minutes, or until the potatoes are tender, golden, and slightly crisp around the edges.
Enjoy warm, with a sprinkle of fresh thyme for brightness!
Tips for the Best Roasted Sweet Potatoes
- Leave the skin on if you enjoy the texture—just scrub them well before slicing.
- Slice evenly: Thinner slices roast faster and crisp up more easily.
- Customize the flavor: Add smoked paprika, cayenne, or chili powder for a touch of heat.
- Swap the herbs: Fresh rosemary is a great alternative to thyme for a more robust flavor.
How to Choose Sweet Potatoes for Roasting
Look for firm, heavy sweet potatoes with smooth, unblemished skin. The best varieties for roasting are Red Garnet and Jewel, as they become beautifully tender and caramelized.
Store sweet potatoes in a cool, dark, dry place—not the refrigerator—for up to two weeks.
How to Cut Sweet Potatoes Safely
Sweet potatoes can be dense, so a good technique helps:
- Trim the ends.
- Slice a thin strip lengthwise so the potato sits flat on your cutting board.
- Use a sharp chef’s knife or Santoku knife to slice into thin rounds.
The scalloped (Granton) blade on a Santoku helps prevent sticking.
Roasting Time
At 400°F (200°C), sweet potato slices typically roast in 30–35 minutes, depending on thickness. If your slices are very thin, check a few minutes earlier; thicker slices may need a little more time.
Storing Leftovers
Refrigerate leftover roasted sweet potatoes for up to 3 days. Reheat in the oven, covered, with a splash of water to keep them from drying out.
More Sweet Potato Recipes to Try
- Instant Pot Mashed Sweet Potatoes
- Classic Baked Sweet Potatoes
- Roasted Sweet Potatoes with Maple Pecan Glaze
- Sweet Potato Cauliflower Curry
Garlic Parmesan Roasted Sweet Potatoes
Yield: 6 servings
Prep Time: 10 minutes
Cook Time: 30 minutes
Ingredients
- 2 sweet potatoes, peeled and sliced
- 2 teaspoons minced garlic
- 1 tablespoon olive oil
- 2 tablespoons melted butter
- 4 tablespoons grated Parmesan cheese
- ½ teaspoon garlic salt
- ½ teaspoon fresh cracked black pepper
- ½ teaspoon Italian seasoning
- Fresh thyme
Instructions
- Preheat oven to 400°F (200°C). Peel and cut sweet potatoes into thin slices.
- Add the sweet potato slices to a resealable bag with garlic, olive oil, melted butter, salt, pepper, Parmesan, and Italian seasoning. Shake until evenly coated.
- Lightly butter a baking dish and arrange the coated slices in a spiral pattern. Sprinkle with fresh thyme.
- Roast for 30–35 minutes, until tender and golden.
- Serve warm with extra thyme if desired. Enjoy! ❤️