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Cheesy Cauliflower Casserole (Low Carb)

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If you are looking for a side dish that feels indulgent but still keeps things low carb, this Cheesy Cauliflower Casserole is about to become your new go to. It has all the creamy, bubbly, golden goodness of a classic comfort food casserole, but swaps the heavy starch for tender cauliflower florets that soak up every bit of that rich, cheesy sauce.

Cheesy Cauliflower Casserole in a white baking dish
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This is the kind of dish that makes you forget you are eating vegetables. The top gets perfectly golden and slightly crisp, while the inside stays creamy, melty, and packed with flavor in every bite. Whether you are serving it alongside grilled chicken, a holiday roast, or just want a cozy weeknight side that feels a little special, this casserole delivers big comfort without the carbs.

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Cheesy Cauliflower Casserole is insanely delicious and what’s even better? its low carb & keto friendly!

This dish is absolutely amazing!! I made a double batch for a pot luck dinner and everyone loved it and asked for the recipe!

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Can I do anything to save some calories?

You can use just milk if you want to save calories or use half and half instead of whole milk and heavy cream.

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What type of cheese should I use?

Use your favorite nice melting cheese, in my experience almost every cheese fits nicely with this dish.

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Cooking Tip

 Don´t leave the white sauce alone. It burns very fast, will taste awful and you can´t rescue it.

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Variations, how to switch up

You can play around with all different vegetables or use part potatoes too.
Leftover ham or even rotisserie chicken is great in this dish and makes it a whole meal.

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What can I add to it to give it a kick?

Spice it up by using a bit of curry powder or cayenne pepper.

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Can I make this ahead of time?

Sure, just prepare everything, keep it covered in your fridge and bake when ready to eat.

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Can I make more than the 4 servings?

Yes, just double the ingredients and use a bigger pan.

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Bacon is another wonderful addition to this dish as well and gives it a wonderful added flavor! 

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 This one is such a delicious side dish everyone always loves! All the flavor of cheesy mashed potatoes without all the carbs!

up close shot of the Cheesy Cauliflower Casserole with a spoon lifting up some
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This is one recipe you are going to make time and time again- even the kids will love it!

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up close shot of the Cheesy Cauliflower Casserole with a spoon lifting up some
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Cheesy Cauliflower Casserole (Low Carb)

Ingredients
  

  • 1.6 lbs 4.5 cups frozen cauliflower florets, thawed
  • 2 tablespoons butter
  • 3 tablespoons 1/4 cup flour
  • 1 cup whole milk
  • 1/2 cup heavy cream
  • 1 Tablespoon sour cream
  • salt and pepper to taste
  • 3/4 cup grated parmesan cheese
  • 1 cup grated gouda Monterey jack, Sharp cheddar cheese or another nicely melting cheese

Instructions

  • preheat your oven to 350°F and set aside a small baking pan (9×9)
  • cook the cauliflower florets for 5 minutes in boiling salted water or for 3-4 minutes in the microwave, drain and fill into the pan
  • heat up a pan over medium low heat and melt the butter
  • stir in the flour and cook for 1-2 minutes until small bubbles show
  • now add the sour cream & pour in a third of the milk and whisk until the sauce is smooth
  • add remaining milk and heavy cream and bring to a boil while stirring continuously
  • cook for 3-4 minutes to get rid of the floury taste
  • add pepper and the parmesan cheese and cook another 1-2 minutes until the cheese has melted
  • add salt to taste and pour over the cauliflower
  • spread grated cheese over it and bake for 20-30 minutes until cheese is melted and sauce is bubbly & serve hot
  • ENJOY!

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