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Spaghetti squash alfredo is topped is made with a creamy alfredo sauce and topped with perfectly cooked chicken. This low carb comfort food is flavorful and hearty. We’re sharing options to keep this dairy free.

chicken alfredo stuffed spaghetti squash
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After my husband tasted this recipe he said it was his favorite one on my site so far! That’s a huge praise considering I have hundreds of recipes over here on WMM. If he loves it you will too!

And if you love alfredo, try this chicken alfredo gnocchi bake next!

Is spaghetti squash healthy?

One reason I love it is because you don’t miss any flavor even though you’re eating a low carb and whole30 approved recipe. Simple, whole ingredients make it possible for this spaghetti squash recipe to be very healthy!

Ingredient Notes

  1. Spaghetti squash
  2. Boneless skinless chicken breast
  3. Almond milk
  4. Coconut milk or heavy cream
  5. Tapioca starch (flour)
  6. Italian spices
  7. Parmesan cheese or nutritional yeast
chicken alfredo stuffed spaghetti squash recipe

Cook the squash

Start by preheating the oven to 425°F. Cut the spaghetti squash in half lengthwise then scoop the seeds and stringy bits out with a spoon. Place the spaghetti squash cut-side-up on a baking sheet and drizzle with olive oil then bake in preheated oven for 50 minutes.

How to make spaghetti squash alfredo

Think of stuffed spaghetti squash kind of like making a twice baked potato. While the spaghetti squash is cooking, you’ll make the chicken alfredo filling to go inside.

Lastly, when the spaghetti squash is tender and stringy, scoop out the stringy insides and mix it together with the prepared filling then place it all back in the spaghetti squash shell to go back in the oven for 15 more minutes. And you’re done!

chicken stuffed spaghetti squash

Expert Tips

  • You can meal prep and save some time by baking the spaghetti squash and chicken in advance.
  • Make sure to buy the full fat canned coconut milk (not the lite kind!)
  • If you’re making this recipe dairy free, the nutritional yeast is a bonus for parmesan flavor. I find it at my local Whole Foods in the bulk section.
baked stuffed spaghetti squash

More low carb whole30 recipes:

If you love this recipe as much as I do, don’t forget to follow me on Instagram and tag me with @what_mollymade so I can see it and feature you.

Tap stars to rate!
4.25 from 16 votes

Chicken alfredo stuffed spaghetti squash

Prep: 10 minutes
Cook: 1 hour
Total: 1 hour 10 minutes
This low carb meal is flavorful and healthy! Chicken alfredo stuffed spaghetti squash will make your whole family full and happy. With a whole30 options, everyone can enjoy it.

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Servings: 4


For the stuffed spaghetti squash:

  • 1 large spaghetti squash
  • 2 medium chicken breasts
  • Salt and pepper to taste
  • Fresh parsley or basil to garnish

For the alredo sauce:

  • 1 can coconut milk full fat, cream and liquid
  • 1/4 cup unsweetened almond milk
  • 1 teaspoon fine grain salt
  • ¼ teaspoon pepper
  • 2 cloves garlic minced
  • 1 teaspoon dried basil
  • 1 tablespoon lemon juice
  • 2 tablespoons tapioca starch
  • 1 tablespoon nutritional yeast or 1/3 cup parmesan cheese optional


  • Preheat oven to 425°F. Line a large baking sheet with parchment paper or a silicone baking mat. Set aside.
  • Cut the spaghetti squash in half lengthwise and scoop the seeds and stringy bits out with a spoon and discard.
  • Place the spaghetti squash cut-side-up on a baking sheet and drizzle with olive oil. Bake in preheated oven for 25 minutes.
  • Remove squash from the oven and flip over to the other side. At this point, move the spaghetti squash to the side and add your chicken breast on the same baking sheet. Drizzle chicken with olive oil and salt and pepper. Bake for another 15-18 minutes at 425°F until the chicken is cooked and reaches an internal temperature of 165.
  • While the chicken and squash cook, make the sauce. Pour a can of full-fat coconut milk into a saucepan over medium heat and stir to combine. Add the almond milk, salt, pepper, garlic, basil, and lemon juice. Next, add the tapioca starch to a tablespoon of water and mix to dissolve. Pour the mixture into the sauce and stir continuously while simmering until it starts to thicken, 1-2 minutes. 
  • Add the nutritional yeast or parmesan cheese if desired and stir again until cheese is melted. Increase heat to high and boil for about 1 minute until sauce because thick. Remove from heat and set aside.
  • When the chicken and spaghetti squash are done, allow to cool briefly so the squash is cool enough to handle.
  • Cut the chicken into slices or chunks and place it in a large mixing bowl with the alfredo sauce. Scoop out the squash from the skin and place the squash in the bowl with the chicken and alfredo, stirring well to combine.
  • Scoop the mixture back into the spaghetti squash skin/shells then top with more parmesan cheese if desired. Place back in the oven for 15 minutes until cheese bubbles and turns brown.
  • Serve with chopped parsley or fresh basil.
Last step! If you make this, please leave a review letting us know how it was!


To save time, bake the spaghetti squash and chicken in advance and store in the fridge until you’re ready to use it.


Serving: 1g | Calories: 225kcal | Carbohydrates: 14.7g | Protein: 18.3g | Fat: 10.8g | Saturated Fat: 6.4g | Cholesterol: 46mg | Sodium: 237mg | Fiber: 0.2g | Sugar: 0.6g

Nutrition information is automatically calculated, so should only be used as an approximation.

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Recipe Rating


  1. Krystina says:

    5 stars
    I made this for my family and it was a hit! My family member already went ahead and bought a spaghetti squash so I could make the recipe again. It was a quick, easy , and healthy alternative to noodles without compromising too much.

  2. Grace Argento says:

    5 stars
    This is SO GOOD!!!! I used GF flour to thicken my sauce in the absence of the tapioca. My hubby and I love the subtle taste of lemon in the sauce. Will definitely be filing this recipe under “favorites”!

  3. Ilish says:

    I am not a big fan of coconut milk if I can taste it in the recipe. This sounds tasty but my question is can you taste the coconut milk after creating the sauce ? What would be a good non dairy substitute.

    1. Molly Thompson says:

      Hey! I totally get that! I don’t mind the taste of it but you can’t taste it at all in this recipe because there’s so many other flavors going on! Silk makes a non-dairy heavy cream that would work.

  4. Jess says:

    Is there a substitute for the tapioca starch?

    1. Molly Leonard says:

      You could use arrowroot powder or cornstarch!

      1. Jessica says: