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    Home / Recipes / Kid Friendly

    Healthy Keto Sweet Potato Casserole Recipe

    By Lisa MarcAurele · Jul 5, 2020 · 39 Comments

    3.7K shares
    Jump to Recipe
    keto sweet potato casserole pinterest image

    Staying away from sweet potatoes due to carbs? Try this fantastic low-carb keto sweet potato casserole substitute with sweet pecan topping. It’s perfect for the holidays!

    keto sweet potato casserole recipe
    Article Index
    • Ingredients
    • QUICK TIPS
    • Instructions
    • ️ Serving suggestions
    • FAQs
    • Related recipes
    • Recipe

    Are you stressing over what to serve at your holiday meal now that many traditional dishes are off limits? No need to worry because many recipes come in a low-carb version.

    During one of our family Thanksgiving meals, I remember my oldest sister bringing a sweet potato casserole. I thought it was strange to add marshmallows to a side dish.

    When I got my first taste of this classic Thanksgiving side dish, I thought it belonged on the dessert table. Apparently, a candy company created the original recipe to market marshmallows as an everyday ingredient and the recipe went viral.

    For my healthy sweet potato casserole recipe, I left out the marshmallow taste as I never liked them on the dish. Instead, I’ve topped the casserole with a sweet crunchy pecan topping.

    I also don’t use actual sweet potatoes because they have about 25 grams of carbs per cup. Instead, I’ve mashed together cauliflower and pumpkin puree as the main ingredients for the sweet potato filling.

    Ingredients

    This casserole comes together easily with basic ingredients. The best part is that you should be able to find everything you need at your local grocery store!

    Cauliflower and Pumpkin Puree

    The sweet potato mixture starts with a combination of two popular vegetables on the keto diet. Cauliflower is used to get a potato-like texture. Pumpkin provides the color of a sweet potato casserole to the dish.

    Sweetener

    My preferred low-carb sweetener is BochaSweet because it comes from kabocha, a Japanese pumpkin. But you can use Swerve or a monk fruit sweetener instead.

    For the best taste in the topping, you'll want to use a brown sugar substitute like Swerve Brown.

    Eggs

    The eggs holds everything together. It's an important ingredient to get the right consistency. It adds some protein too!

    Butter

    I like to use salted butter as it has the best buttery flavor. But you can use unsalted if you want less sodium and the sweet taste to come through more.

    Keto flour

    The topping uses a combination of almond and coconut flour but you should be able to use one or the other for this recipe. Since coconut flour is absorbent, always use about one-third less than almond flour.

    Pecans

    For a crispy keto-friendly topping, chopped pecans are stirred into the mix.

    Spices

    You'll find traditional fall spices are blended into the sweet potato mash alternative. Included are cinnamon, nutmeg, ginger, and cloves.

    Note: Check out the recipe card at the bottom for a full list of ingredients used to make this low-carb recipe.

    keto sweet potato casserole recipe ingredients

    QUICK TIPS

    • Try an alternative brown sweetener. If you don’t have any low carb brown sugar substitute on hand, you can always add a touch of blackstrap molasses to a granular white sugar substitute.
    • Don't omit the sweetener. Pumpkin is very close in taste to sweet potatoes but isn’t as sweet. That’s why you’ll need to add a sweetener to get the true flavor.
    • Adjust the amount of sweetness to taste. I found ⅓ cup of sweetener to be just the right amount for me in the cauliflower casserole mixture. Others may prefer a little more or a little less.
    • Cut back on the granular sweetener. You can use pure stevia or monk fruit in a concentrated powder or liquid. Just use my handy keto sweetener conversion calculator to determine the amount needed.
    • Change up the spice blend. The traditional pumpkin spices of cinnamon, nutmeg, ginger, and cloves really enhances the flavor as well. However, feel free to modify the spice blend to suit your own tastes.

    Instructions

    You'll find all the specific steps needed to make this delicious sweet potato casserole alternative in the printable recipe card at the bottom of the post. Here you'll find some process images and tips for preparing this family favorite for Thanksgiving day.

    Cut and cook cauliflower

    To get a smooth texture, you'll need to cook the cauliflower until it's tender. I've found the best way is to cut it into florets and then steam it in the Instant Pot pressure cooker on high pressure. I steam for 5 minutes and follow with a quick pressure release.

    cook cauliflower to tender

    Make vegetable mash

    Although you can use a large bowl with a hand mixer to mash the vegetables together, I prefer to use a food processor. The mash is a blend of cauliflower, pumpkin, sweetener, eggs, salt, butter, and spices.

    You need to combine the ingredients together until smooth.

    making mock sweet potato mash in food processor

    Add mash to pan

    Once the mock sweet potato mash is prepared, just spread it into a 2-quart casserole dish. I like to use an 11x7 pan.

    mock sweet potato mixture spread into casserole pan

    Make and add topping

    The topping is a mixture of brown sweetener, coconut flour, almond flour, butter and pecans. Just mix everything but the butter together then cutter in chopped pieces of butter.

    Once the topping mixture is prepared, just sprinkle it over the cauliflower and pumpkin mixture. Then bake until the topping is browned.

    making the sweet pecan topping and spreading over mash mixture

    That's all there is to making this easy sweet potato casserole substitute for a low-carb diet!

    keto sweet potato casserole in baking pan with spoon tall image

    ️ Serving suggestions

    This low-carb sweet potato casserole tastes more like a dessert to me, but it does go well with turkey and ham. So, it’s a great dish to make for your holiday meal.

    However, I've found that the leftovers taste great straight from the refrigerator with a little keto whipped cream on top. The sweet taste makes it an excellent snack or dessert during the fall season!

    serving low carb sweet potato casserole alternative

    FAQs

    Before sharing the recipe, I wanted to go over some common question that people often ask about the dish and ingredients.

    Can you eat sweet potatoes on keto?

    There are a lot of carbs in sweet potatoes so they are not recommended for those following a low-carb eating plan. A typical sweet potato has 25 grams of carbs or more. It's better to use a substitute like pumpkin instead.

    How many carbs are in a sweet potato casserole?

    A traditional sweet potato casserole generally has over 35 grams of carbs for a half cup serving. That's more than most people consume daily on a keto diet.

    Aren’t sweet potatoes good carbs?

    Some may argue that sweet potatoes contain healthy carbs because the glycemic index is lower and the fiber is higher than white potatoes. However, the net carb count is still high so it's best to avoid if you are watching carbs.

    keto sweet potato substitute in casserole pan

    Related recipes

    Need some more ideas for the perfect side dish for your holiday table? Take a look at some of my other low-carb sides.

    • Keto stuffing is an easy way to replace your box mix with a low-carb alternative!
    • Cauliflower au gratin is made with a rich cheese sauce and added bacon for a dish that's sure to be a hit at any holiday gathering.
    • Keto creamed spinach comes with a creamy cheese sauce that even picky eaters will enjoy.
    • Green beans almondine is one of the easiest side dishes to make for holiday dinners.
    • Keto ham casserole with cauliflower is a fantastic dish for using up your holiday leftovers!

    Follow us on FACEBOOK, PINTEREST, and INSTAGRAM for even more tasty keto-friendly recipes!

    Recipe

    keto sweet potato casserole in baking pan with spoon

    Low-Carb Keto Sweet Potato Casserole

    4.74 from 15 votes
    Staying away from sweet potatoes due to carbs? Try this fantastic low carb sweet potato casserole with pecan topping. It's perfect for the holidays.
    Prep Time:5 minutes mins
    Cook Time:30 minutes mins
    Total Time:35 minutes mins
    Course: Side Dish
    Cuisine: American
    Print Pin Review Recipe Save Recipe View Collections
    Servings: 10 people
    Calories: 200

    Video

    Ingredients

    • 1 head of cauliflower about 1.2 pounds florets
    • 1 cup mashed pumpkin
    • ⅓ cup BochaSweet or preferred keto sweetener
    • 3 eggs
    • ½ teaspoon salt
    • 4 tablespoons butter softened
    • 1 teaspoon cinnamon
    • 1 teaspoon nutmeg
    • ½ teaspoon ginger
    • ¼ teaspoon cloves

    Pecan Topping

    • 3 tablespoons Brown Sweetener packed or other brown sugar substitute
    • 2 tablespoons coconut flour
    • 3 tablespoons almond flour
    • 4 tablespoons butter softened
    • ¾ cup chopped pecans

    Instructions

    • Cut cauliflower into florets and steam until soft. (I steamed them in the Instant Pot for 5 minutes)
    • Combine steamed cauliflower, pumpkin, sweetener, eggs, salt, butter, cinnamon, nutmeg, ginger, and cloves in food processor or blend. Puree until smooth.
    • Spread mashed cauliflower mixture into a 2-quart or 11x17 casserole dish.

    Topping

    • In medium bowl, mix together Sukrin Gold, coconut flour, almond flour, and pecans. Cut in butter.
    • Sprinkle pecan mixture over cauliflower mixture.
    • Bake at 325°F for 30 minutes or until topping has browned.

    Notes

    Frozen cauliflower florets can be used in place of fresh, if desired.

    Low Carb Sweeteners | Keto Sweetener Conversion Chart

    Nutrition

    Calories: 200 | Carbohydrates: 7g | Protein: 5g | Fat: 18g | Saturated Fat: 7g | Cholesterol: 80mg | Sodium: 231mg | Fiber: 3g | Sugar: 2g

    Additional Info

    Net Carbs: 4 g | % Carbs: 8.1 % | % Protein: 10.1 % | % Fat: 81.8 % | SmartPoints: 8
    Values
    Array
    (
        [calories] => 200
        [carbohydrates] => 7
        [protein] => 5
        [fat] => 18
        [saturated_fat] => 7
        [cholesterol] => 80
        [sodium] => 231
        [fiber] => 3
        [sugar] => 2
        [serving_unit] => g
    )
    

    Notes on Nutritional Information

    Nutritional information for the recipe is provided as a courtesy and is approximate only. We cannot guarantee the accuracy of the nutritional information given for any recipe on this site. Erythritol carbs are not included in carb counts as it has been shown not to impact blood sugar. Net carbs are the total carbs minus fiber.

    Copyright

    © LowCarbYum.com - Unauthorized use of this material without written permission is strictly prohibited unless for personal offline purposes. Single photos may be used, provided that full credit is given to LowCarbYum.com along with a link back to the original content.

    First published on November 21, 2016. Post updated on December 3, 2021, with new photos and additional recipe information.

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    Comments

      « Previous 1 2
    1. Carol Clevenger

      November 14, 2023 at 9:53 pm

      5 stars
      This is absolutely fabulous. My nonketo husband really liked it, I didn't tell him what was in it and he had thirds!! He is used to my "weird food" and doesn't ask. I just added more spices and loved it!!!

      Reply
    « Previous 1 2

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