If you’re looking for a dish that combines comforting warmth with a burst of flavors, this Roasted Sweet Potatoes with Garlic and Parmesan Recipe will quickly become one of your go-tos. Imagine tender rounds of sweet potato infused with the boldness of garlic, the nutty richness of Parmesan, and a sprinkle of herbs that bring everything together with a fresh finish. This recipe delivers a fantastic harmony between savory and sweet, all wrapped in a beautiful golden roast that’s as pleasing to the eye as it is to the palate.

Ingredients You’ll Need
These ingredients are simple yet essential, each bringing something special to make this dish unforgettable. From the natural sweetness of the potatoes to the aromatic garlic and the rich, melty Parmesan, every component plays a key role in crafting perfect roasted sweet potatoes.
- Sweet potatoes (2, peeled and sliced): The hearty base that roasts to a tender, slightly caramelized perfection.
- Minced garlic (2 teaspoons): Adds a fragrant, savory punch that enhances every bite.
- Olive oil (1 tablespoon): Helps carry flavors and creates a beautifully crisp texture on the edges.
- Butter, melted (2 tablespoons): Brings richness and an irresistible silky finish to the potatoes.
- Grated Parmesan cheese (4 tablespoons): Offers a salty, nutty note and a lovely golden crust when baked.
- Garlic salt (1/2 teaspoon): Deepens the garlic flavor while seasoning the dish perfectly.
- Fresh cracked pepper (1/2 teaspoon): Adds just the right hint of spice and complexity.
- Italian seasoning (1/2 teaspoon): Provides a subtle herbal aroma that complements the garlic and Parmesan.
- Fresh thyme (for garnish): A fresh herbal touch that brightens the dish visually and flavor-wise.
How to Make Roasted Sweet Potatoes with Garlic and Parmesan Recipe
Step 1: Preheat and Prepare
Start by preheating your oven to 400ºF (200ºC). This ensures your sweet potatoes roast evenly and develop that beautiful golden color. While the oven heats, peel and slice the sweet potatoes into thin, even rounds for consistent cooking.
Step 2: Mix the Flavorful Coating
Place the sweet potato slices in a large resealable bag along with the minced garlic, olive oil, melted butter, garlic salt, black pepper, Parmesan cheese, and Italian seasoning. Seal the bag and give it a good shake to coat each slice thoroughly. This mix ensures every bite has a harmonious blend of savory, salty, and herby goodness.
Step 3: Arrange in a Baking Dish
Lightly butter your baking dish to prevent sticking and arrange the coated sweet potato slices in a spiral or overlapping pattern. This arrangement isn’t just pretty; it also helps the potatoes cook evenly and absorb the flavors.
Step 4: Add Final Touches and Roast
Sprinkle fresh thyme over the arranged potatoes and feel free to add a little extra Parmesan if you’re a cheese lover. Then pop the dish into your preheated oven and roast for about 30 to 35 minutes. Keep an eye on them toward the end to ensure they achieve a golden, slightly crispy edge without burning.
Step 5: Serve and Enjoy
Once roasted, remove from the oven and serve immediately. The potatoes should be tender on the inside with crispy, cheesy edges and a fragrant garlic aroma. Garnish with a bit more fresh thyme if you like, and get ready to dig in!
How to Serve Roasted Sweet Potatoes with Garlic and Parmesan Recipe

Garnishes
Fresh thyme is the perfect garnish to add a burst of color and fragrance. You can also sprinkle some extra grated Parmesan cheese on top right after roasting for a melty, irresistible finish. A drizzle of good-quality olive oil or a pinch of red pepper flakes can add a gourmet touch.
Side Dishes
This dish pairs wonderfully with hearty mains like roast chicken, grilled steak, or even a vegetarian lentil loaf. The creamy, garlicky potatoes complement protein-rich or plant-based dishes beautifully, adding texture and flavor contrast to your meal.
Creative Ways to Present
Try serving these delicious potatoes layered in a casserole with some caramelized onions or even drizzled with a tangy balsamic glaze. For casual gatherings, present them in individual ramekins topped with fresh herbs so everyone gets their own personal portion of this comfort food classic.
Make Ahead and Storage
Storing Leftovers
After enjoying your meal, let the potatoes cool completely before transferring them to an airtight container. They can be kept in the refrigerator for up to 3 days, maintaining their flavor and texture very well.
Freezing
If you want to save some for later, these roasted sweet potatoes freeze nicely. Place them on a baking sheet to freeze individually first, then transfer to a freezer-safe bag or container. They’ll stay good for about 2 months and thaw quickly when needed.
Reheating
To bring them back to life, reheat in a preheated oven at 350ºF (175ºC) for 10-15 minutes until warmed through and crispy again. Avoid microwaving if you want to keep that perfect texture.
FAQs
Can I use regular potatoes instead of sweet potatoes?
Absolutely! While this recipe shines with sweet potatoes’ natural sweetness, russet or Yukon gold potatoes also work well with the garlic and Parmesan flavors. Just adjust the baking time depending on the thickness of your slices.
Is it possible to make this recipe vegan?
Yes, simply swap the butter for a plant-based alternative and use a vegan Parmesan-style cheese. Olive oil alone can also do the trick if you prefer to keep it simple and dairy-free.
How thin should the sweet potato slices be?
Slicing around 1/8 to 1/4 inch thick works best. Thin slices cook evenly and allow the seasoning to penetrate while still holding their shape during roasting.
Can I prepare this dish in advance?
You can mix the sweet potatoes with garlic, oil, and seasonings in advance and keep them refrigerated for a few hours before roasting. This lets the flavors meld beautifully. However, arrange and roast them fresh just before serving for the best texture.
What can I do if I don’t have Italian seasoning?
Feel free to substitute with a mix of dried oregano, basil, and thyme. Even a bit of rosemary or sage would add a lovely herbal note that pairs well with garlic and Parmesan.
Final Thoughts
This Roasted Sweet Potatoes with Garlic and Parmesan Recipe is a warm hug on a plate, bursting with irresistible flavors and satisfying textures. It’s simple enough for any weeknight, yet special enough to impress guests. Once you try it, I bet it’ll become a staple in your kitchen just like it has in mine — don’t wait to give it a go!
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Roasted Sweet Potatoes with Garlic and Parmesan Recipe
- Prep Time: 10 minutes
- Cook Time: 30-35 minutes
- Total Time: 40-45 minutes
- Yield: 4 servings
- Category: Side Dish
- Method: Baking
- Cuisine: American
Description
This delectable recipe features roasted sweet potatoes enhanced with garlic, melted butter, and a generous sprinkle of Parmesan cheese, seasoned with garlic salt, fresh cracked pepper, and Italian herbs. Perfectly cooked in the oven until tender and golden, these sweet potatoes make a flavorful and comforting side dish that pairs well with any meal.
Ingredients
Sweet Potatoes
- 2 sweet potatoes, peeled and sliced
Garlic and Seasoning
- 2 teaspoons minced garlic
- 1/2 teaspoon garlic salt
- 1/2 teaspoon fresh cracked pepper
- 1/2 teaspoon Italian seasoning
- Fresh thyme, for garnish
Oils and Cheese
- 1 tablespoon olive oil
- 2 tablespoons butter, melted
- 4 tablespoons grated Parmesan cheese
Instructions
- Preheat the oven: Preheat your oven to 400ºF (200ºC) to ensure it reaches the ideal temperature for roasting the sweet potatoes evenly.
- Prepare the sweet potatoes: Peel the sweet potatoes and slice them into thin, uniform rounds to ensure they cook through evenly during roasting.
- Coat the sweet potatoes: In a large resealable bag, combine the sweet potato slices, minced garlic, olive oil, melted butter, garlic salt, cracked pepper, grated Parmesan cheese, and Italian seasoning. Seal the bag and shake it thoroughly so that all slices are evenly coated with the flavorful mixture.
- Arrange in baking dish: Lightly butter a baking dish to prevent sticking, then arrange the coated sweet potato slices in a spiral or overlapping pattern for an attractive presentation.
- Add finishing touches: Sprinkle fresh thyme leaves over the arranged sweet potatoes and, if desired, add extra grated Parmesan on top for added flavor and a delicious crust.
- Roast the sweet potatoes: Place the baking dish in the preheated oven and roast for 30 to 35 minutes. Monitor the potatoes towards the end to prevent burning and ensure they become tender and slightly caramelized.
- Serve: Remove the dish from the oven and serve the roasted sweet potatoes immediately, garnished with additional fresh thyme if you like, to enjoy their full vibrant flavor and aroma.
Notes
- For best results, slice sweet potatoes evenly to ensure uniform cooking.
- You can substitute Parmesan with a vegetarian hard cheese if preferred.
- Use fresh thyme for garnish to enhance flavor, but dried thyme can be used in the seasoning mix if fresh is unavailable.
- Adjust garlic salt based on taste preference or dietary salt restrictions.
- These roasted sweet potatoes pair wonderfully with roasted meats, grilled vegetables, or as a standalone side dish.