Keto Mac and Cheese

Keto mac and cheese in a glass bowl set on a striped kitchen towel
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Introduction

Mac and cheese is the one that seems permanently off the table when you cut carbs. It is not — but the noodles are the whole conversation, so let’s start there.

Keto cheesy mac and cheese in a bowl

About the Noodles

This uses Pasta Zero, or any shirataki noodle. Fair warning: they are not pasta. They are firmer and the texture is different. They also come packed in liquid, and opening the bag smells a little unusual — not bad, just not like pasta.

Prepared properly they are very good. There is a trick to it, though, and it is the next section.

The Part That Actually Matters

Three things happen to the noodles before they ever meet cheese, and the third one is the one to pay attention to.

They get rinsed under cold water for about 90 seconds, boiled for three to five minutes, and then — this is the step — pan-fried over medium heat for eight to ten minutes.

Shirataki noodles are full of water. Frying drives some of it off, and that is what makes this step the crucial one. Once the noodles get going they throw off a lot of steam. It is steam, not smoke, and nothing is wrong.

The one thing to watch is the far end of that window. Left too long they start to turn crunchy, and crunchy is not a texture anybody wants in mac and cheese.

Steps to making keto mac and cheese

Add-Ins Go in With the Cheese

Have anything you are adding ready before the sauce comes together. It goes in with the cream and cheese rather than at the very end, which is easier than trying to work it through afterwards.

We put bacon in ours. Four ounces, cooked and chopped — optional, but not in our kitchen.

Steps to making keto mac and cheese

The Sauce Needs No Roux

Heavy cream comes to a boil, then down to a simmer, and the cheddar goes in with salt, pepper and garlic powder until it melts smooth. Then the noodles go in.

That is the whole sauce. No roux, no flour, nothing to thicken it with — the cream and the cheese do it themselves.

Keto mac and cheese in a bowl

You’ll find the full per-serving breakdown — calories, fat, fiber, protein, and net carbs — in the Nutrition Facts panel with the recipe below.

Click HERE To Pin Keto Mac and Cheese

Keto mac and cheese side view

Ingredients

All Ingredients

Nutrition Facts

4 servings per recipe
Trans Fat 0g 0% 0g 0%
Total Sugars 0g 0% 0g 0%
Sugar Alcohols 0g 0% 0g 0%
Allulose 0g 0% 0g 0%

About these numbers: We are home cooks, not certified nutritionists. Nutrition is shared as a courtesy and calculated with free online nutrition calculators — we compare a few to get as close as we can — so please treat it as a helpful estimate rather than a guarantee. The brands you buy, any swaps you make, and how generously you portion the recipe will all move these numbers.

Directions

  1. Pour Pasta Zero into colander and rinse under cold water 90 seconds

  2. Boil noodles for three to five minutes, strain.

  3. Pan fry noodles over medium heat for eight to ten minutes to evaporate moisture, set noodles aside.

  4. Bring 1 cup heavy cream to a boil, reduce to simmer and add in cheddar cheese, salt, pepper, and garlic powder (add in bacon or any other add-ins at this time).

  5. Stir together until cheese is completely melted and combined with heavy cream.

  6. Combine cheese sauce and noodles and enjoy!

Notes

  • Refrigerate leftovers in an airtight container and use them within three to four days (USDA FSIS guidance). We have not tested how well the noodles reheat.

Leftovers

This is the kind of dish there is usually some of left, so here is what we can and cannot tell you.

What we do know is how long cooked leftovers should stay in the fridge: get it into an airtight container, and go by the USDA’s Food Safety and Inspection Service, which puts cooked food at three to four days.

What we have not tested is how well the shirataki holds up on the way back out. It is fussy enough about being cooked once that we are not going to guess at twice. If you try it, the comments are the place to say so.

If You Would Rather Skip the Noodles Entirely

Cauliflower is the other way to do this. Keto Cooking Christian’s Jalapeño Popper Cauliflower “Mac” and Cheese is worth a look if shirataki is not for you.

And if you want something to put next to it, these air fryer fish sticks or this keto sheet pan salmon both work.

Updated — September 10, 2026: We removed a duplicate walkthrough tied to the numbered process collage, gave the shirataki noodle prep — the part that decides whether this works — a section of its own, and added what we can say about leftovers.

Correction — August 23, 2026: The article's nutrition figures were out of date. Per-serving calories, fat, fiber, protein, and net carbs now come from the Nutrition Facts panel with the recipe, calculated from its ingredient list.