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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.
- Cook spaghetti squash.
- Bake chicken breasts.
- Make alfredo sauce.
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
Keto Spaghetti Squash Alfredo Recipe (Healthy Chicken Alfredo)
Learn how to make healthy chicken alfredo with spaghetti squash and creamy sauce! This keto spaghetti squash alfredo recipe is easy low carb comfort food at its best.
Recipe VideoTap on the image below to watch the video.
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Tap underlined ingredients to see where to get them. Please turn Safari reader mode OFF to view ingredients.
Baked Spaghetti Squash
Italian Baked Chicken Breast
Low Carb Alfredo Sauce
Tap on the times in the instructions below to start a kitchen timer while you cook.
- Cook Italian Baked Chicken Breast in the oven according to the instructions here, except use butter instead of olive oil and halve the recipe. Then, cut into bite size pieces.
- Meanwhile, make the low carb Alfredo sauce on the stove, according to the instructions here.
- Use a fork to release the spaghetti squash strands and transfer to a large bowl.
- Add chicken pieces, homemade Alfredo sauce, and fresh parsley, then toss to coat. (You may want to use less sauce to your liking. Start with 1/2 and add more as necessary. If you don't need all of it, the rest can be reheated later for another use.) Add additional sea salt and black pepper to taste as needed.
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Nutrition info is based on using all the Alfredo sauce from this recipe, and includes the sauce. You may need less.
Serving size: 1 cup
Nutrition facts are provided as a courtesy. Have questions about calculations or why you got a different result? Please see our nutrition policy.
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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!
I did it today and used shrimp instead of chicken!! Very yummy
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 Yum0
Hi Elizabeth, I’m glad you liked it! The nutrition info includes the entire recipe – squash, chicken, and sauce. Hope this helps!
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 Pantry0
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!
This recipe was amazing, we love spaghetti squash so much!
Yum! The alfredo sauce is so creamy and delicious. It’s such a good combo with the spaghetti squash
I love using spaghetti squash instead of pasta – so much fun!
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!
This was fabulous the only thing I added was pesto sauce added additional flavor and color. Yummy!!
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 A0
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.
So the butter won’t burn when it’s the half recipe?
Wholesome Yum M0
Hi Linda, No, it shouldn’t burn.
I made this tonight for dinner with vegetables instead of the chicken. It came out great and the vegetables gave it a nice twist.
Loved the chicken and the sauce was so YUMMY! Will be making again & again & again….
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!
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 Yum0
I am so happy you liked it, Christina! please come back soon!
Beth A Lassen0
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 Yum0
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.
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 Yum0
Thank you, Deborah! Agree, spaghetti squash is amazing with lots of different sauces.