Name: Keto Spaghetti Squash Alfredo Recipe (Healthy Chicken Alfredo)
Prep time: 15 min
Cook time: 15 min
Total time: 30 min
Ingredients: 1 medium Spaghetti squash; 2 tbsp Fresh parsley ((chopped)); 2 large Boneless skinless chicken breast; 2 tsp Unsalted butter; 2 tsp Italian seasoning; 1 tsp Garlic powder; Sea salt; Black pepper; 1 tbsp Unsalted butter; 6 cloves Garlic; 1 1/2 cup Heavy cream; 1/2 cup Grated parmesan cheese; Nutmeg ((optional - to taste)); Black pepper ((optional - to taste))

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I know you’re excited about this keto spaghetti squash alfredo, because who doesn’t love alfredo?! It was one of my favorite meals as a kid, and thankfully, with this healthy chicken alfredo recipe, it’s still a family favorite! It’s got all of the classic flavors, but uses spaghetti squash as the keto noodles, a homemade alfredo sauce, and my trick for perfect baked chicken breast, so you can easily cut carbs and keep this recipe light.

I’ve got no shortage of spaghetti squash recipes on my site – it’s one of my favorite keto vegetables! Try it as a pasta swap in spaghetti squash lasagna, a base for meaty recipes like stroganoff, or an equally delicious substitute for any recipe that uses zucchini noodles.

This low carb spaghetti squash chicken alfredo was originally published on October 11, 2017, and the post was republished in October 2020 to add updated pictures and useful tips.

How To Make Spaghetti Squash Alfredo

Making a healthy chicken alfredo is really easy. I actually did it by combining three of my favorite low carb recipes!

But don’t be intimidated. They are super easy, and you can make them in parallel:

Bake spaghetti squash. Get the instructions for how to roast spaghetti squash here – there are 2 options for the method, and a trick for making it faster!

Bake chicken breast. We’re using my juicy baked chicken breast recipe, but cutting the recipe in half and using Italian spices.

Make low carb alfredo sauce. The last step, this simple alfredo requires just 4 ingredients, and is super rich and creamy.

Assemble healthy chicken alfredo. Place strands of spaghetti squash into a large bowl and top with chicken pieces and the keto alfredo sauce. Season with salt and pepper to taste.

Spaghetti Squash Chicken Alfredo FAQs

Is chicken alfredo healthy?

Regular chicken alfredo is not the healthiest option – a combination of high-carb pasta and high-fat alfredo sauce is not ideal. Once you swap the pasta for low carb spaghetti squash, it gets much better.

So yes, this is a healthy chicken alfredo recipe! This meal is loaded with veggies and protein.

Can I make healthy chicken alfredo with spaghetti squash?

Absolutely! Chicken alfredo flavors work so well with the slightly sweet squash, give it a try.

Can I make healthy alfredo with zucchini noodles?

If you prefer zucchini to spaghetti squash, you can certainly make a batch of zucchini noodles and serve the sauce and chicken over those instead. It’s delicious either way.

Or if it’s easier, simply follow my keto zoodles alfredo recipe.

Can I make it dairy-free?

Yes, you can swap out the heavy cream for coconut cream and skip the Parmesan, or use your favorite dairy-free Parmesan replacement.

How many carbs in spaghetti squash chicken alfredo?

Each serving of this spaghetti squash alfredo recipe has 9.1 grams net carbs – this is a good amount for a keto dinner. Compare that to a 2-ounce serving of regular fettucine, which has 35 grams net carbs!

Healthy Chicken Alfredo Storage Instructions

Can you make it ahead?

Yes, you can prep any or all of the components of this recipe ahead, which makes the assembly super simple.

When you’re ready to eat, reheat and toss everything together. It’s perfect if you want to make a chicken alfredo meal prep.

How to store spaghetti squash alfredo:

Store in the refrigerator for 3-5 days.

Can you freeze spaghetti squash with alfredo sauce?

Yes, you can actually freeze this dish. The sauce can change texture, so follow the reheating instructions.

How to reheat spaghetti squash with alfredo:

Reheat the spaghetti squash and chicken until warm in a hot skillet, stirring frequently. It’s especially important to stir if it was previously frozen, to prevent curdling.

TIP: Be careful not to heat the sauce too much, or it can separate.

What To Serve With Keto Spaghetti Squash Alfredo

This dish could easily be a meal by itself. But if you want to add something, here are some ideas:

Rolls – Try breadstick and roll recipes, like keto breadsticks (find them in my Easy Keto Cookbook!) or fathead dinner rolls.
Salads – These can be hearty like keto antipasto, or even just a simple green salad with Caesar dressing or Italian dressing.
Sauteed Veggies – Simple veggies like sauteed broccoli, roasted broccolini, or sauteed zucchini.

More Keto Spaghetti Squash Recipes

If you like this spaghetti squash alfredo recipe, you might also like some of these other keto spaghetti squash recipes:

Buffalo Chicken Spaghetti Squash Casserole – Just 6 simple ingredients to make this hearty casserole that’s flavorful and healthy.
Spaghetti Squash Pad Thai – This keto pad Thai is perfect for Thai cravings – loaded with flavor and no sugar.
Lasagna Stuffed Spaghetti Squash – This healthy comfort food meal is easy and delicious.
Keto Chicken Soup – All the classic flavors of chicken noodle soup, but with a healthy noodle upgrade of spaghetti squash.

Tools To Make Healthy Chicken Alfredo

Tap the links below to see the items used to make this recipe.

Sheet Pan – For your baked spaghetti squash.
Baking Dish – For your chicken breast.
Saucepan – The perfect size for alfredo sauce.

Keto Spaghetti Squash Chicken Alfredo Recipe

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24 Comments

Donna
0 September 26, 2022Reply

I made this recipe today – it is absolutely delicious. Plan on making it again for the company. I followed your directions on cooking the chicken breasts (never prepared them that way before). They tasted amazing. Thank u for sharing!
Rozeni
0 October 14, 2021Reply

I did it today and used shrimp instead of chicken!! Very yummy
Elizabeth
0 June 5, 2021Reply

It was great but I’m confused on the nutritional information, is this just the sauce itself or the sauce and the spaghetti squash together? I know the chicken isn’t included because the protein is way off. Thanks!
- Maya | Wholesome Yum
  0 June 6, 2021Reply
  
  Hi Elizabeth, I’m glad you liked it! The nutrition info includes the entire recipe – squash, chicken, and sauce. Hope this helps!
Elaine
0 November 2, 2020Reply

One of those recipes that screams fall! Definitely need to try it some time before the season ends. You make the whole recipe super easy to follow.
Bintu | Recipes From A Pantry
0 November 2, 2020Reply

I love alfredo and this sounds oh so good! Any way to make one of my favourite dishes healthier but just as tasty is a winner in my eyes!
Tawnie
0 November 2, 2020Reply

This recipe was amazing, we love spaghetti squash so much!
HANNAH HEALY
0 November 2, 2020Reply

Yum! The alfredo sauce is so creamy and delicious. It’s such a good combo with the spaghetti squash
Janelle
0 November 2, 2020Reply

I love using spaghetti squash instead of pasta – so much fun!
Hamidah
0 June 29, 2020Reply

So easy and soooooo good. I used non-dairy whipping cream and it was AMAZING!!!!!!!!!!!!! I roasted two spaghetti squash and had enough for a few more servings. AMAZING!!! Thank you!
J
0 January 21, 2020Reply

This was fabulous the only thing I added was pesto sauce added additional flavor and color. Yummy!!
Linda
0 November 4, 2019Reply

I have a question – I printed out the chicken recipe and then noticed you said use butter and halve the recipe for the Alfredo recipe. Does the butter not react the same – like burn?? I’m confused….. :-}
- Wholesome Yum A
  0 November 5, 2019Reply
  
  Hi Linda, you’ll make the full alfredo sauce recipe and half of the original chicken recipe. Replacing the olive oil in the chicken with butter gives the dish a richer flavor, but you could still use olive oil if you prefer.
  - Linda
    0 November 5, 2019Reply
    
    So the butter won’t burn when it’s the half recipe?
    - Wholesome Yum M
      0 March 1, 2020Reply
      
      Hi Linda, No, it shouldn’t burn.
Doug Hurteau
0 November 4, 2019Reply

I made this tonight for dinner with vegetables instead of the chicken. It came out great and the vegetables gave it a nice twist.
Jackie
0 March 25, 2019Reply

Loved the chicken and the sauce was so YUMMY! Will be making again & again & again….
Jessica Scherer
0 January 11, 2019Reply

I just want to say I made this for dinner tonight, and it was amazing! I’ve been doing keto for a few months now, and for the last couple of weeks I’ve been craving chicken alfredo. I happened to find spaghetti squash the other day, and then I found this recipe this morning. I’m so glad I did, because this really hit the spot! I didn’t even miss the noodles. Thanks so much for posting this!
Christina
0 September 24, 2018Reply

I made this tonight. Came out amazing! There were no leftovers. I used 5 cloves of garlic which was perfect for my tastebuds. Will definitely be a good fall/winter staple. I am on a roll with your recipes!! 😀
- Maya | Wholesome Yum
  0 September 27, 2018Reply
  
  I am so happy you liked it, Christina! please come back soon!
Beth A Lassen
0 September 2, 2018Reply

What is the salt content for this. My husband is on a low sodium diet and I am on low carb diet, seems like if it’s low carb it’s high salt and vice versa
- Maya | Wholesome Yum
  0 September 2, 2018Reply
  
  Hi Beth, I don’t have additional nutrition info on hand aside from what’s on the recipe card, but you can find that out by entering the ingredients you use into an online calculator. Feel free to omit the salt on the chicken to reduce the sodium if you need to. You can also substitute salt in recipes with potassium chloride, which tastes salty but doesn’t have sodium.
Deborah Erickson
0 November 1, 2017Reply

Never even heard of spaghetti squash before gave it a try . I wanted to cut down on pasta, carbs. My husband and myself were pleasantly surprised. It was delicious. Thank you for the recipe. Gonna try the spaghetti squash with some of my other sauce recipes we love.
- Maya | Wholesome Yum
  0 November 2, 2017Reply
  
  Thank you, Deborah! Agree, spaghetti squash is amazing with lots of different sauces.