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Cheesy Scalloped Sweet Potato Casserole

  • Author: Krista
  • prep_time Prep Time: 10 minutes
  • cook_time Cook Time: 1 hour
  • total_time Total Time: 1 hour 10 minutes
  • yield Yield: 10-12 servings 1x
  • category Category: Side Dish
  • method Method: Oven
  • cuisine Cuisine: American


This Cheesy Scalloped Sweet Potato Casserole Recipe is a fun twist on the classic sweet potato side dish! Way healthier than sweet potatoes topped with marshmallows, this easy casserole is a huge hit!



  • 67 medium sweet potatoes, cut into 1/3” slices
  • 1 tablespoon of butter
  • 1 shallot
  • 2 garlic cloves, minced
  • 1/2 cup heavy cream
  • 3/4 cup 2% milk
  • 2 teaspoons fresh thyme, diced
  • 1 teaspoon fresh tarragon, diced
  • 1/2 teaspoon sea salt
  • 1 cup shredded gruyere cheese


  1. Preheat oven to 400 degrees.
  2. Spray the bottom of a 13×9″ baking dish with Cooking Spray. Set aside.
  3. Using a mandoline, slice sweet potatoes to 1/3″ thick. (if you do not have a mandoline, use a very sharp knife to slice)
  4. Add half the sweet potatoes to the greased baking dish.
  5. In the meantime, heat a small sauce pan to medium high heat. Add butter and shallots to pan. Saute until translucent, about 3-4 minutes. Next add in the garlic and saute for 30 seconds. Then add in the heavy cream, milk, fresh thyme, fresh tarragon, and sea salt and stir. Bring a boil and then remove from heat.
  6. Pour half the milk mixture over the sweet potatoes. Top with half the gruyere cheese.
  7. Add another layer of the remaining sweet potatoes, top with remaining milk mixture and cheese.
  8. Cover with tin foil.
  9. Bake for 30 minutes.
  10. Remove the tin foil and bake an additional 25-30 minutes, or until sweet potatoes are tender.
  11. Optional: top with a garnish of fresh thyme


Recipe inspired by The Iron You


  • Serving Size: 2/3 cup
  • Calories: 157
  • Sugar: 7 g
  • Sodium: 216 mg
  • Fat: 9 g
  • Carbohydrates: 15 g
  • Fiber: 2 g
  • Protein: 5 g
  • Cholesterol: 30 mg

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