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    Home » Recipes » Keto

    Published: Feb 3, 2019 · Last Updated: Jun 8, 2022 by Kyndra Holley

    Keto Cauliflower Au Gratin

    This post may contain affiliate links

    Jump to Recipe·Print Recipe·5 from 4 reviews
    Keto Cauliflower Au Gratin | Peace Love and Low Carb copy
    This Keto Cauliflower Au Gratin is the perfect comfort food side dish. It goes perfectly with steak, chicken, pork and even seafood.
    Keto Cauliflower Au Gratin | Peace Love and Low Carb
    This Keto Cauliflower Au Gratin is the perfect comfort food side dish. It goes perfectly with steak, chicken, pork and even seafood.

    This Keto Cauliflower Au Gratin is the perfect comfort food side dish. It goes perfectly with steak, chicken, pork and even seafood.

    Keto Cauliflower Au Gratin | Peace Love and Low Carb
    Table of Contents show
    A quick and easy keto au gratin recipe
    Substitutions and Swaps
    Other recipes you might enjoy
    Keto Cauliflower Au Gratin
    Keto Cauliflower Au Gratin | Peace Love and Low Carb

    A quick and easy keto au gratin recipe

    I am a big fan of one pot keto meals. I love being able to throw a bunch of healthy low carb ingredients all in one pan and transform them into something delicious. This low carb au gratin recipe is the perfect comfort food side dish. It goes great with just about any protein. Growing up we ate a lot of boxed potatoes au gratin. You know, with those waxy, thinly sliced things that resembled poker chips. We can't forget the packet of powdered cheese. Well this is not the boxed au gratin of my 80's childhood. This golden brown and bubbly cauliflower au gratin casserole is sure to because a low carb side dish staple for years to come.

    Keto Cauliflower Au Gratin | Peace Love and Low Carb
    Keto Cauliflower Au Gratin | Peace Love and Low Carb

    Substitutions and Swaps

    • add some broccoli or any of your other favorite low carb vegetables
    • add a pinch of nutmeg
    • add some chicken or beef and turn this keto side dish into a full meal
    • add some smoky bacon
    • add some shiritaki noodles and turn it into a low carb pasta dish
    • make it with cauliflower rice instead of florets
    Keto Cauliflower Au Gratin | Peace Love and Low Carb

    Other recipes you might enjoy

    • A serving platter with mini cheesecakes, topped with whipped cream and candied nuts.
      Keto Eggnog Cheesecake
    • A bowl of creamy taco soup made with ground beef, onion, garlic, cream cheese, beef stock, diced tomatoes and green chilies. Garnished with avocado, tomato, cheese, and cilantro.
      Keto Taco Soup
    • A white serving bowl full of homemade slow cooker beef stew, with a spoon in the bowl and chopped parsley on the side.
      Keto Beef Stew (low carb, gluten free)
    • A white casserole dish with chicken breasts topped with cheese, bacon and green onions.
      Keto Crack Chicken (Cheesy Bacon Ranch Chicken)

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    Print
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    Keto Cauliflower Au Gratin | Peace Love and Low Carb

    Keto Cauliflower Au Gratin


    5 Stars 4 Stars 3 Stars 2 Stars 1 Star

    5 from 4 reviews

    • Author: Kyndra Holley
    • Total Time: 1 hour 25 minutes
    • Yield: 6 servings
    Print Recipe
    Pin Recipe

    Ingredients

    • 1 large head of cauliflower (6 to 7 inches in diameter), trimmed and cut into florets
    • 2 small red onions, thinly sliced
    • 2 tablespoons olive oil (I use this brand)
    • 2 tablespoons balsamic vinegar
    • 1 tablespoon granular erythritol, optional (I use this brand)
    • ¾ cup heavy cream
    • ½ cup finely grated parmesan
    • ½ teaspoon sea salt, more to taste
    • ¼ teaspoon black pepper, more to taste
    • 1 cup shredded gruyere or gouda cheese


    Instructions

    1. Preheat the oven to 350°F.
    2. Heat the olive oil in a large skillet over medium heat. Once the pan is hot, add the onions to the pan and cook until soft and tender, about 15 minutes.
    3. Add the balsamic vinegar and erythritol, if using, to the pan with the onions, and stir to combine. Cook for an additional 5 minutes.
    4. Add the cauliflower florets to the skillet and toss to combine with the onions.
    5. In a small bowl, combine the heavy cream, parmesan cheese, salt and pepper. Pour the mixture over top of the cauliflower.
    6. Sprinkle the gruyere over top and bake for 40 minutes or until the cauliflower is tender and the top is golden brown and bubbly.

    Notes

    NET CARBS PER SERVING: 7.2g

    • Prep Time: 25 minutes
    • Cook Time: 60 minutes

    Did you make this recipe?

    Tag @kyndraholley on Instagram and hashtag it #peaceloveandlowcarb

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    Reader Interactions

    Comments

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      Recipe rating 5 Stars 4 Stars 3 Stars 2 Stars 1 Star

    1. Laura says

      April 12, 2022 at 2:53 pm

      This recipe is so good! I’ve made it several times and it’s become a favorite in my home.

      Reply
    2. ChapelHillBetsy says

      March 12, 2022 at 4:49 am

      I would love to make this but I can no longer lift an iron skillet. I'm not sure I have an oven safe skillet. After I combine the cauliflower florets with the onions, can I transfer everything from the skillet to a baking dish then pour over the heavy cream, parmesan cheese, salt and pepper mixture?

      Reply
      • Kyndra Holley says

        March 12, 2022 at 8:04 am

        Yes, that should work just great

        Reply
    3. Penny Howard says

      July 12, 2021 at 7:45 pm

      This is such a wonderful dish! We have enjoyed it several times. Great comfort food!

      Reply
    4. Nancy says

      July 12, 2021 at 8:43 am

      Can I sub a different cheese rather than gruyere or gouda cheese
      I would rather use cheese that I have on hand 😊❤️🌹

      Reply
      • Kyndra Holley says

        July 12, 2021 at 8:55 am

        You can use any cheeses that you have on hand.

        Reply
    5. Sandra O'Neil says

      May 02, 2021 at 7:23 pm

      Delicious I've added caramelized Brussel sprouts too with bacon

      Reply
    6. Steve Barclay says

      February 26, 2021 at 6:36 pm

      This is really a great recipe. I add some diced ham also let stay in the oven an extra 10 minutes.

      Reply
    7. Mare says

      October 31, 2019 at 1:14 pm

      how much nutmeg should i add?

      Reply
    8. Melissa says

      February 11, 2019 at 5:18 pm

      This was amazing! I can marine adding, cooked chicken, and or bacon for a one dish dinner. I loved the flavor the balsamic caramelized onions added. Thank you!

      Reply
      • Melissa says

        February 11, 2019 at 5:20 pm

        That should be “I can imagine” LOL!

        Reply
    9. LBH says

      February 03, 2019 at 4:01 pm

      This was so good! My husband love fed it and said he’d eat it every night! I added a little smoked paprika. And used yellow onion, because that’s what I had. Delish!

      Reply

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    About Kyndra


    Kyndra
    Hey there! Welcome to my site! I am Kyndra Holley - International Best Selling Cookbook Author, and the face behind this blog. I am an avid lover of all things low carb, keto and gluten free. I focus on real, whole food ingredients that you can find at your local grocer. Read more about Peace Love and Low Carb...

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