Cauliflower Mac and Cheese

This cauliflower mac and cheese is going to be a hit with grown ups and kids alike – especially that low carb garlic bread topping! Skip the carbs and indulge with this creamy cheesy cauliflower instead. Big thanks to Roth Cheese for sponsoring this post.

Scooped Roasted cauliflower mac and cheese

I totally realize that a lot of people are falling off of the New Year’s Diet Resolution band wagon, but I am so hopeful that this roasted cauliflower recipe is going to help keep you motivated on that low carb diet of yours.

This recipe…woo. It does not taste like diet food, I can tell you that.

Then again, it’s not too often that keto recipes taste diet-y, which is probably why I love the keto diet so very, very much. It’s near and dear to my heart for three reasons – 1. Bacon, 2. Cheese, 3. Bacon and Cheese.

Cheesy cauliflower bake has a low carb cheese sauce in white pot.

This cauliflower cheese bake is one of those keto recipes that my whole family loves.

Honestly, it’s not too often that my family dislikes one of my low carb recipes, which really makes following the diet a whole heck of a lot easier! That’s not always true with other diets I’ve tried.

I teamed up with Roth Cheese to bring you this cheesy cauliflower bake and I think you’re going to love the mix of Grand Cru and Havarti cheese.

Roasted cauliflower mac and cheese in white pan.

If you haven’t tried Grand Cru before, it’s Roth’s signature alpine-style cheese. If you love Gruyere, you’ll love this cheese. And who doesn’t love Gruyere, especially in a mac and cheese?

Their Havarti is extra creamy and I have a really hard time not slicing it and serving it on a cheese board, but it’s really fantastic in a cheese sauce.

This low carb cheese sauce skips the traditional roux, since flour is full of carbs. Instead, you’ll just heat some heavy cream and stir in your grated cheese until everything is smooth and creamy.

Hot cheesy cauliflower casserole being scooped.

I always add a bit of ground mustard powder to my cheese sauce for an extra boost of flavor, but if you don’t have it on hand, it’s fine to skip it.

I really love how easy this cauliflower mac and cheese recipe is and you can totally just stop right there and call it a day.

However, I thought I’d take it a step further and add a garlic bread topping. I love crunchy toppings on baked mac and cheese, don’t you?

The topping is made of almond meal, butter, and garlic powder. So simple!

Scooping low carb keto cauliflower mac and cheese.

This is a decadent roasted cauliflower recipe that I think your whole family will love!

My kids didn’t even realize they were eating vegetables with this one!

Hope you guys enjoy this cheesy cauliflower recipe just as much as we did!

Cauliflower mac and cheese on a wooden spoon.

Cauliflower Mac and Cheese

Prep Time 10 minutes Cook Time 30 minutes Total Time 40 mins
Serves 6     adjust servings

This cauliflower mac and cheese is made with a low carb cheese sauce and topped with a simple garlic bread topping to add a little crunch. This one is a hit with kids and grown ups alike!


For the mac and cheese

  • 1 large head cauliflower
  • 1 tablespoon olive oil
  • 1/2 teaspoon ground pepper
  • 1/2 teaspoon salt
  • 1/2 cup heavy whipping cream
  • 6 ounces Roth Havarti, grated
  • 3 ounces Roth Grand Cru, grated
  • 1/2 teaspoon ground mustard

For the garlic bread topping

  • 1/4 cup almond meal
  • 1 tablespoon melted butter
  • 2 teaspoons minced parsley
  • 1/2 teaspoon garlic powder
  • 1/4 teaspoon garlic salt


  1. Preheat oven to 400 degrees.
  2. Dice the cauliflower into bite-sized chunks. 
  3. Toss the cauliflower with olive oil, salt, and pepper, and place in a 2 quart baking dish. 
  4. Bake for 20 minutes, stirring halfway through. 
  5. While cauliflower is baking, prepare the cheese sauce.
  6. Heat the cream in a small sauce pan over medium heat and whisk in the cheeses and ground mustard. Continue whisking over medium heat until cheese has melted and sauce is smooth and creamy.
  7. Remove the cauliflower from the oven and pour the cheese sauce over the top. Stir to coat all of the cauliflower in the cheese sauce.
  8. Stir together the almond meal, melted butter, parsley, garlic powder, and garlic salt. Sprinkle over the cauliflower mixture.
  9. Turn the oven to broil and return the cauliflower to the oven. Broil for 1-2 minutes or until the almond meal is browned. 
  10. Let set for 5 minutes before serving.


Recipe Notes


Disclaimer: The nutrition information presented below is not guaranteed to be accurate.

Affiliate Links: This blog contains affiliate links.
Nutrition Facts
Serving Size
Amount Per Serving As Served
Calories 345kcal Calories from fat 273
% Daily Value
Total Fat 30g 46%
Saturated Fat 16g 80%
Transfat 0g
Cholesterol 94mg 31%
Sodium 468mg 20%
Carbohydrate 10g 3%
Dietary Fiber 3g 12%
Sugars 4g
Protein 12g

Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs:

Calories 2000
Total Fat Less than 65g
Sat Fat Less than 25g
Cholesterol Less than 300mg
Sodium Less than 2,400mg
Total Carbohydrate 300g
Dietary Fiber 25g