Whole30 Tuscan Spaghetti Squash Casserole
This Whole30 Tuscan Spaghetti Squash Casserole is an easy casserole recipe the entire family will love! Dairy free, gluten free, Paleo, and Whole30, this is healthy comfort food at its finest!
This post was updated with new photos and copy on October 2nd, 2021.
This Whole30 Tuscan Spaghetti Squash Casserole might be one of my new favorite recipes! I used a combination of garlic, cashews, and coconut milk to create a creamy, Alfredo-like sauce without any dairy! In this recipe, you’ll find out how to cut spaghetti squash, how to cook spaghetti squash, and how to use this low carb veggie in a delicious casserole.
TABLE OF CONTENTS
Ingredients Notes
Sausage: You can either make your own using ground pork (I love to get my heritage breed pork delivered to my doorstep from Butcher Box!) or use store-bought Italian sausage (Butcher Box also has sugar free Whole30 compliant Italian sausage!). If making your own sausage, you’ll need fennel seed, ground sage, thyme, white pepper, cayenne pepper, garlic powder, all spice.
Kale: If you aren’t a fan of kale, you can sub in spinach or your favorite greens!
How to Make Whole30 Tuscan Spaghetti Squash Casserole
- First, preheat your oven to 400.
- Wondering how to cut spaghetti squash? This is personally just how I like to to cut a spaghetti squash, I like to cut it in half horizontally. This is the opposite of how most people do it! It creates longer “spaghetti-like” strands this way! Scoop out the seeds and lay both halves cut-side down on a parchment-lined baking sheet. Bake the squash for 35-40 minutes (depending on the size of the squash you may need more time – you’ll know it’s done when you can easily pierce it with a fork!).
- Meanwhile, make the sausage. Heat a large sauté pan over medium high heat and add all sausage ingredients. Stir/cook for 5-7 minutes until browned and cooked through. Drain the fat. Add the kale and cook for an additional 1-2 minutes until it begins to wilt. Set the pan aside.
- Make the creamy dairy free garlic sauce: Combine all of the sauce ingredients in a high-speed blender and blend on high for 30 seconds or until it is very creamy. The cashews do not need to be soaked beforehand, unless you do not have a high-speed blender.
- Once the squash is cooked, remove it from the oven and use a fork to remove the strands. Add the squash and the garlic sauce to the pan with the sausage and kale. Mix it well. Transfer to a casserole dish and bake at 400 for 15 minutes, or until the sides and bubbling and it’s warmed through. Serve and enjoy!
Mary’s Tips & Tricks
Protein: You can use ground chicken or ground turkey instead of pork.
More Spice: For extra heat, simply use an extra few dashes of red pepper flakes! On the flip side, to make this less spicy, omit the crushed red pepper or add slightly less.
Nut-Free: Unfortunately the cashews help to make this creamy garlic sauce super creamy without the dairy. I haven’t tested it with any nut free substitutions.
FAQs
How many carbs in a spaghetti squash? Spaghetti squash is an excellent, low-carb substitute for pasta. A whole spaghetti squash has about 10 total grams of carbs. If you are wondering if spaghetti squash is keto, the answer is yes! Because it has about 2 grams of fiber, the net carbs for a whole spaghetti squash is 8 grams!
Is this a vegan spaghetti squash recipe? This recipe is not vegan due to the sausage, however, simply remove the animal protein from this recipe and it is vegan!
Looking for More Spaghetti Squash Recipes? Check These Out!
Whole30 Spaghetti Squash Carbonara
Eggplant Parm(less) Spaghetti Squash Casserole
As always, if you make this recipe and love it, it would mean the world to me if you could give it 5 stars and leave a review on the blog!
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Whole30 Tuscan Spaghetti Squash Casserole
Ingredients
Sausage (If making your own)
- 1 lb ground pork
- 1 tsp fennel seed
- 1 tsp salt
- 2 tsp ground sage
- 1 tsp thyme
- 1 tsp white pepper, black is fine if you don't have it
- ¼ tsp cayenne pepper
- ½ tsp garlic powder
- ¼ tsp all spice
Creamy Garlic Sauce
- 2 cloves garlic
- 1 cup raw cashews
- ¾ cup water
- ½ cup full-fat coconut milk, Coconut milk separates in the can, so make sure to whisk it well before measuring!
- ½ lemon, juiced
- 1 tsp salt
- ½ tsp red pepper flakes
- ¼ tsp pepper
Remaining ingredients
- 1 large spaghetti squash
- 4 cups kale, stems removed, coarsely chopped
Instructions
- Preheat oven to 400. Cut your squash in half (I like to cut it in half horizontally which is different than how most people do it, but it creates longer "spaghetti" strands this way!) Scoop out the seeds and lay both halves cut-side down on a parchment-lined baking sheet. Bake the squash for 35-40 minutes (depending on the size of the squash).
- Meanwhile, make the sausage: Heat a large saute pan over medium high heat and add all sausage ingredients. Stir/cook for 5-7 minutes until browned and cooked through. Drain fat. Add the kale and cook for an additional 1-2 minutes until it begins to wilt. Set the pan aside.
- Make the creamy garlic sauce: Combine all sauce ingredients in a blender and blend on high for 30 seconds or until very creamy. The cashews do not need to be soaked beforehand.
- Once the squash is cooked, remove it from the oven and use a fork to remove the strands. Add the squash and the garlic sauce to the pan with the sausage and kale. Mix well. Transfer to a casserole dish and bake at 400 for 15 minutes or until sides are bubbling and it's warmed through. Serve and enjoy!
127 Comments on “Whole30 Tuscan Spaghetti Squash Casserole”
This was honestly so delicious. Not a bite leftover! I follower the recipe to a T except did ground Turkey per suggested (that’s what we had), cut the cayenne in 1/2 (little kids) and subbed the sage for rosemary bc mid cooking realized we did not have sage. SO SO SO GOOD thank you Mary!
Could I freeze this and how?
it looks delicious and I’m having 10 guests for two weeks so I need some things made in advanc.
Thank you!
Followed the recipe exactly (used a mix of kale, spinach, chard as greens) and this is so good! We’ve made it a few times now and love it each time. It’s a perfect comfort food for these chilly days!
So delicious and easy Mary! I cooked the spaghetti squash in the morning before work, then made the rest of the recipe when I got home. Loved the flavors of this dish! Will make again!
Thanks, Chelsea!
Simple to make and so delicious. My daughter who hates spaghetti squash loved it and requested I make it again. I will definitely be making it again real soon.
Made this tonight and will def make again!!!
Delish! Filling meal with plenty of leftovers, flavors are very yummy. Only suggestion is if you like a little less spice I’d do 1/4 tsp. of crushed red pepper! Thanks Mary for another creamy “pasta” dish!
A family favorite!!!! Thank you for sharing with us!
This was absolutely delicious! My husband and I both loved it. I love the simple blender sauce to make it a gf/df meal. Thanks for another winner, Mary!
thank you, Michele!
Mouthwatering!!
I made this tonight. I was looking for a flavorful recipe for my spaghetti squash. I filled the recipe – but had some Italian sausage that probably isn’t whole 30 compliant. I wondered about the cashew sauce because I’ve had some store bought before that wasn’t appealing. 5 stars!! It will probably even be better tomorrow once it’s been refrigerated and reheated! Can’t wait!! Thanks for a delicious , healthy , yet decadent tasting dish!!
This came together really well and it was a dinner hit!! I mixed the spaghetti squash with cassava noodles and the texture was great!
I made this for dinner last night for my husband and a good friend – the 3 of us consumed the entire casserole in one sitting. I had been skeptical that the sauce would be creamy/savory enough, but oh man, I don’t think I’ll ever make regular Alfredo sauce again!! Why would I?! The cashew/coconut milk/water based sauce was every bit as (if not more) delicious as the real stuff. This dish made a believer out of my husband, who is squeamish about vegetables in general, but actually protested at the idea of spaghetti squash for dinner. It was also incredibly simple to make. I will be making this on a regular basis going forward!
Wow! I made this tonight for the first time and it was amazing as well as creamy!!!!
Thank you so much for creating these delicious recipes! I’ll definitely be making this again!
-Jaclyn