This Sausage Tomato Basil Spaghetti Squash is your new favorite “pasta” combo! A flavorful tomato basil cream sauce is loaded with savory sausage and baked with spaghetti squash. It’s simple, super tasty, and filling! Paleo, Whole30 compliant and keto friendly, too.
Pre-paleo, I had a favorite pasta recipe that I made probably twice per week – not exaggerating. It involved sausage (of course) and a creamy tomato sauce over bow-tie pasta. Super simple, and it was flipping delicious.
Post paleo of course there was no more pasta, but that didn’t mean I stopped making that creamy sausage tomato basil sauce. I’ve used a similar sauce in a couple of recipes – one with sausage and butternut squash, another with chicken.
But now, it felt like the right time to recreate it as a pasta dish once again – this time with spaghetti squash.
You won’t find a ton of spaghetti squash recipes on my site because I’m pretty picky about it. Or rather, I’m not a huge fan of spaghetti squash UNLESS the sauce is just out of this world delicious, which this one is.
And yes, my chicken pesto spaghetti squash falls into that category too, so it’s totally worth trying out if you haven’t!
About the squash, if you’re still on the fence about spaghetti squash, I have a couple of tips coming from someone who’s iffy at best about it.
First, it must be roasted! I like to roast mine after scooping out the insides. Brush it with olive oil and sea salt and roast the two halves face down on a baking sheet. I find this brings out the best flavor possible so you’re starting with a great base.
Second, you need to watch the squash closely so it doesn’t get too soft. Since squash varies in size a ton, there’s no set number to set the timer for, unfortunately. I find a typical medium squash needs about 25-ish minutes to get to a nice “al dente” texture. I like to press it on top to test after about 22 minutes, and go from there.
For this recipe, you’ll make the sauce while the squash roasts so there’s no time wasted. Once both are done, you’ll layer them a few times in a 9 x 13″ casserole dish and bake until heated through – another 15-20 mins.
The leftovers keep perfectly so this recipe is great to make on a Sunday to have all week long for lunches, dinners, or whatever you need. It’s one you’ll love and come back to often, because it’s just that easy and delicious too!
It’s time to cook now – grab those ingredients and find a good knife to cut that squash – let’s go!
Sausage Tomato Basil Spaghetti Squash {Paleo, Whole30, Keto}
Creamy Sausage Tomato Basil Spaghetti Squash {Paleo, Whole30, Keto}
This Sausage Tomato Basil Spaghetti Squash is your new favorite "pasta" combo! A flavorful tomato basil cream sauce is loaded with savory sausage and baked with spaghetti squash. It's simple, super tasty, and filling! Paleo, Whole3o compliant and keto friendly, too.

Ingredients
- 1 med spaghetti squash
- olive oil and salt for roasting squash
- 1 Tbsp ghee or coconut oil
- 1 lb sweet Italian sausage or any Whole30 compliant sausage
- 1/2 tsp crushed red pepper or to taste
- 1 medium onion chopped
- 4 cloves garlic minced
- 1 cup fresh basil torn
- 15 oz can diced tomatoes fire roasted, drained
- 1/2 cup coconut cream or full fat coconut milk
- 1/4 tsp sea salt
- Parsley for garnish
- Extra red pepper flakes salt, and pepper to suit your taste
Instructions
Roast Squash:
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Preheat your oven to 435 degrees. Cut the squash in half, lengthwise, and scoop out the seeds and strings. Brush inside with olive oil and sprinkle with sea salt.
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Place face down on a foil lined baking sheet, and roast in the preheated oven for 25 mins or until the top of squash is just soft enough to push in with your finger. The time will vary depending on the size of the squash.
Make the Sauce:
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Meanwhile, heat a large skillet over medium heat, once heated, add the cooking fat.
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Remove casings from sausage and crumble into the skillet, then sprinkle red pepper flakes over sausage. Use a spatula to break apart the sausage as it cooks. Cook 2-3 mins or until browned and crumbled.
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Once sausage is browned, add onions and stir, cook about 2 minutes until softened, then add garlic and continue to cook another minute, stirring.
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Once garlic is softened, add in the tomatoes, coconut cream or milk, salt and Italian seasoning or fresh herbs. Stir to combine everything, then bring to a boil. Lower heat and allow mixture to simmer 2-3 minutes.
Assemble and Bake:
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Once squash is done, lower oven temp to 400 F. Allow squash to cool long enough to handle. Use a fork to remove the "spaghetti" by scraping squash lengthwise.
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In a large casserole dish, layer the spaghetti with the sausage mixture to evenly mix. Bake in the preheated oven 15-20 mins or until heated through. Enjoy!
Nutrition
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Want More Paleo “Pasta” Recipes? Try One of These!
Zucchini Carbonara {Whole30, Keto}
Sweet Potato Pork Lo Mein {Whole30}
Zucchini Noodle Shrimp Scampi {Whole30, Keto}
Chicken Pesto Spaghetti Squash {Whole30, Keto}
Citrus Grilled Shrimp and Zoodles {Whole30}
Almond Butter Sesame Zucchini Noodles {Whole30, Vegan}
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This dish is AMAZING!!! I have shared it about 10 times already. My husband is already begging me to make it again.
Can this be made with zucchini instead of spaghetti squash? Squash allergy in the household. ?
Definitely doubling this when I make it again! It’s so delicious!
One of my favorite recipes for low-carb day! So flavorful and easy to make.
I made this recipe, but used almond milk instead of coconut milk, it was delicious! I am going to make this again with black bean spaghetti, since my husband is not a big squash fan.
I’ve made this recipe a handful of times, so I’m leaving a review. I used Turkey meat instead of sausage- skipped the basil bc I didn’t have any & added a bunch more spices and nutritional yeast. It was amazing, better and gone day 2. Enjoy it! It has great flavor and is a good way to incorporate spaghetti squash for healthier options!
My son shared this recipe with me as I have been making mostly Whole30-based recipes over the past year. This is definitely, without a doubt, the BEST THING I HAVE EVER MADE. It is the ONLY recipe in my notebook with THREE STARS at the top. I am making it again this weekend for a friend. Amazing. Thank you!
This is one of the best meals I’ve had in my life. So incredibly simple and delicious.
DELICIOUS! Cooked the spaghetti squash in the Instant Pot to save time, and added mushrooms to the sauce!
I don’t know what it is that makes this recipe taste so phenomenal! The ingredients are super simple, but the flavor that comes out of this is AMAZING! I like spaghetti squash, but this recipe elevates it and makes me LOVE it now! This is in my weekly rotation and makes me forget all about traditional pasta!