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Easy One-Pan Scalloped Sweet Potatoes

These easy scalloped sweet potatoes are such a quick and easy side dish. Tender sweet potatoes in a creamy herb sauce topped with parmesan cheese! Simply slice the sweet potatoes thinly, layer in a baking dish, cover with the creamy herb sauce and bake until tender. Top with cheese and broil until golden brown. This one pan side dish would be a great idea for the holiday table or special occasions! A perfect recipe for thanksgiving day, Christmas dinner, or an addition to weeknight family dinner. Not to mention budget friendly and delicious!

baked scalloped sweet potatoes

Tender layers of sweet potatoes cover in a creamy sauce topped with fresh herbs!

Quick steps for these scalloped sweet potatoes:

  • Thinly slice sweet potato
  • Layer in a baking dish
  • Mix together cream sauce
  • Pour over potatoes
  • Bake until tender
  • Top with cheese
  • Broil
  • Serve topped with fresh herbs

Butter, garlic, shallots/onion, thyme, cream, and parmesan make the perfect sauce!

First steps:

  • Finely dice onion/shallot, garlic, and herbs
  • Combine ingredients for sauce

Tools I used for this recipe:

  • Handheld Mandolin – perfect for getting even slices, this mandolin has a rubber handle for good grip and a safety guard. Plus it takes up very little space and you can change the thickness as desired.
  • Stainless Steel Sauce Pan – the perfect size pan for warming up the cream mixture!
  • Rectangular Baking Dishthe perfect size dish for these scalloped sweet potatoes!

Highlights of this one-pan side dish:

  • Tender layered sweet potatoes
  • Easy recipe
  • Creamiest garlic sauce
  • Huge hit with crowds
  • Great savory side dish
  • Loads of fresh herbs
  • Quick to make
  • Great way to incorporate sweet potatoes
  • Easy clean up
  • Budget friendly idea for a crowd

Scalloped sweet potatoes are the prefect side dish!

If you like this sweet potato gratin, you’ll love these other easy side dish recipes….

Easy Potato Au Gratin

Failproof Long Grain Rice in the Instant Pot

Green Bean Casserole From Scratch

Simple Glazed Carrots

Perfect Brown Rice (without a rice cooker)

Use a mandolin to get evenly sliced potatoes that bake evenly!

Grocery List for the sweet potato side dish:

  • Sweet potatoes (try to find uniform potatoes, this can help with even baking)
  • Butter (can substitute vegan butter)
  • Garlic (the more the better!)
  • Shallot or red onion
  • Heavy cream, half and half, or milk (cashew cream could be substituted if needed to make this dish vegan)
  • Fresh thyme, rosemary, or oregano
  • Kosher salt & black pepper
  • Parmesan (or different types of cheeses like substitute gruyere cheese, Colby jack or Monterey jack, or cheddar cheese, you could also substitute a vegan cheese).

Thinly slice sweet potatoes using a sharp knife or a mandolin and layer in a greased baking dish

Second Steps:

  • Thinly slice potatoes
  • Layer in a greased casserole dish
  • Top with sauce mixture

Final Steps:

  • Top with cheese and bake
  • If desired, after baking, top with extra cheese and broil until golden brown

Instructions for the scalloped sweet potato recipe:

  • Preheat oven to 400 degrees F, grease a baking dish and set aside. Evenly layer the sliced sweet potatoes in the dish (shown above).
  • In a small saucepan heat the butter over medium-high heat. Once warm add in the garlic and shallot, sauté for 2-3 minutes until fragrant. Add in the fresh thyme, salt, and pepper. Remove from heat and stir in the heavy cream. Pour the mixture over the layered sweet potatoes. Top with half of the parmesan cheese.
  • Bake for 50-60 minutes or until the sweet potatoes are tender. Once tender remove from the oven and top with the remaining parmesan cheese. Broil on high for 1-2 minutes until golden brown, watch carefully so nothing burns.
  • Garnish with more fresh thyme and enjoy!

*Cover with aluminum foil is desired while baking to help keep the potatoes extra tender.

*Sweet potatoes can be easily sliced with a mandolin slicer or using a food processor if you have a slicing attachment.

*Top potatoes with a little brown sugar before baking for some sweetness.

*These scalloped potatoes heat up well as leftovers but are definitely much better eaten immediately!

baked scalloped sweet potatoes in casserole dish

Scalloped Sweet Potatoes

4.29 from 83 votes
Course: Side Dish
Keyword: Easy Side Dishes, Holiday Sides, Salloped Potatoes, Sweet Potatoes, Weeknight Meals
Prep Time: 15 minutes
Cook Time: 55 minutes
Total Time: 1 hour 10 minutes
Servings: 6 servings
Calories: 275kcal
Author: The Hearty Life
Cost: $
Print Recipe Pin Recipe

Equipment:

  • Rectangular baking dish

Ingredients: 

  • 4-5 Large sweet potatoes, peeled and sliced thin
  • 2-3 Cloves of garlic, minced
  • 1 Medium shallot, finely diced
  • 4 tbsp Unsalted butter
  • Fresh thyme, to taste
  • 1/2 cup Heavy cream or milk
  • 1 cup Freshly grated parmesan cheese
  • Salt and pepper, to taste

Instructions:

  • Preheat oven to 400 degrees F, grease a baking dish and set aside. Evenly layer the sliced sweet potatoes in the dish (shown above).
  • In a small saucepan heat the butter over medium-high heat. Once warm add in the garlic and shallot, sauté for 2-3 minutes until fragrant. Add in the fresh thyme, salt, and pepper. Remove from heat and stir in the heavy cream. Pour the mixture over the layered sweet potatoes. Top with half of the parmesan cheese.
  • Bake for 50-60 minutes or until the sweet potatoes are tender. Once tender remove from the oven and top with the remaining parmesan cheese. Broil on high for 1-2 minutes until golden brown, watch carefully so nothing burns.
  • Garnish with more fresh thyme and enjoy!

Notes:

*See images above for how to assemble as well as ingredient substitutions. 

Nutrition:

Serving: 1 serving | Calories: 275 kcal | Carbohydrates: 24 g | Protein: 7 g | Fat: 15 g | Saturated Fat: 9 g | Polyunsaturated Fat: 1 g | Monounsaturated Fat: 4 g | Trans Fat: 1 g | Cholesterol: 44 mg | Sodium: 300 mg | Potassium: 419 mg | Fiber: 4 g | Sugar: 5 g | Vitamin A: 16531 IU | Vitamin C: 3 mg | Calcium: 197 mg | Iron: 1 mg

Nutritional information is only an estimate. The accuracy of the nutritional information for any recipe on this site is not guaranteed.

scoop of scalloped sweet potatoes

What to serve these scalloped potatoes with….

2 Ingredient Instant Pot Pesto Chicken

Instant Pot Apple Cider Pork Loin

Red Wine Braised Short Ribs with Cauliflower Mash

Grilled Bruschetta Chicken

Did you make this recipe?

I would love to see it! Take a picture and post to Instagram with the tag @theheartylife and the hashtag #theheartylife – You can also leave me a question or comment below! If you’ve tried this recipe, feel free to give it a star rating on the recipe above.

6 Comments

  • Anonymous
    December 23, 2021 at 11:43 AM

    Made this for an early Christmas celebration with family and it was the hit of the meal!! Thank you!

    Reply
    • Rachel
      December 23, 2021 at 11:54 AM

      So happy to hear – thank you for sharing!!

      Reply
  • Anonymous
    January 9, 2022 at 10:10 AM

    made this for Christmas dinner and it was such a hit my husband has sent it to everyone and talks about it all the time. I’m making it again tonight!

    Reply
    • Rachel
      January 9, 2022 at 1:58 PM

      Oh yay, thank you for sharing! Happy to hear they were a hit!

      Reply
  • Shay
    January 27, 2022 at 9:18 PM

    I tried this recipe and added jalapeños to it. Absolutely delicious! I also substituted shallots for green onion. Very hearty and delicious!

    Reply
    • Rachel
      January 28, 2022 at 7:41 PM

      Thank you for sharing, so happy to hear they turned out so good!!!

      Reply

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