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Monday night Spicy Tomato Parmesan Stuffed Spaghetti Squash. AKA โpastaโ on the healthy sideโฆand so good. Spaghetti squash stuffed with a slightly spicy, roasted garlic tomato sauce, basil pesto, and fresh herbs. All baked together until the squash is tender, the cheese melty, and all is perfect. This is a deliciously easy, healthier way to enjoy the classic flavors of a cheesy tomato pasta. Bonus? Itโs easy enough for any night of the week, requires minimal prep, and comes together in just about an hour.

I have to say, I am very happy to finally be sharing this spaghetti squash with you guys. I made this all the way back in January. Somehow it was lost in my archives of photos and ever so growing list of recipes. If I hadnโt scrolled back through my photos last week, I would have completely forgotten all about this incredibly good (and super easy) recipe.
I know, that seems crazy, right? Iโve just been cooking and photographing so many ย new recipes the last few weeks that if something is not on my calendar and scheduled for posting Iโm most likely going to forget all about it. This has nothing to do with how good the recipe is, trust me, this squash is SO GOOD. Itโs just that I canโt keep everything straight in my head sometimes.
And also? I really just need to be more organized. Thatโs really the bottom line.
Anyway, my point in all this rambling (and on a Monday too, so sorry), is that Iโm very glad and excited to be sharing this cozy, but healthy spaghetti squash with you guys today. Itโs one of those recipes youโll be making time and time again.

Jumping right on into this recipe today, because, well, itโs Monday.
It all starts with the squash. Find yourself a couple of medium size spaghetti squash, half them, and roast them on a baking sheet with smashed garlic. This is KEY. As the squash and garlic roast, the squash becomes infused with a bit of garlic flavor. What I love is that itโs a subtle garlic flavor that doesnโt over power the sweetness of the squash.
Once the squash and garlic are roasted, remove the garlic. Then combine the garlic with canned tomatoes, smoky paprika, dried fennel, herbs, spicy crushed red pepper flakes, and a bit of basil pesto. This is your tomato sauce. I know it may seem simple, but I always find that the simplest tomato sauces are the best ones.
Spoon the sauce into the roasted spaghetti squash, add mozzarella, bread crumbs, and parmesan. Now return the squash to the oven and bake until the cheese is melted and golden, and oh so perfect.
Super simple, but oh so delicious and satisfying too.
PS.ย Iโve kept this recipe vegetarian, but adding in cubed boneless chicken would work really well if youโd like to bump up the protein a bit.

Personally? What I love so much about this recipe is that it kind of feels like a cross between a super cozy winter recipe and a lighter spring recipe. Itโs warm and cheesy, but the spaghetti squash and fresh herbs keep the dish light and fresh.
The perfect winter meets spring combo, right?
With this being the first week of March, I know so many of us have spring on our minds, but the fact is that March is usually still a pretty cold month for most everyone in the US (all of you out of the country readers, if you experience nice weather in March, I am so jealous!). So my goal for this month is more recipes just like this one. Colorful and vegetable filled, yet still warming and good for cold winter weather.
Major bonus? This also happens to be one of the easiest dishes. Simply roast the squash, stuff it with sauce and cheese, and dinner will be ready. Comes together in just about an hour with minimal ingredients and minimal prep. Love that!

If you make this stuffed spaghetti squash, be sure to leave a comment and/or give this recipe a rating! Above all, I love to hear from you guys and always do my best to respond to each and every comment. And of course, if you do make this recipe, donโt forget to also tag me onย Instagram!ย Looking through the photos of recipes you all have made is my favorite!
Spicy Tomato Parmesan Stuffed Spaghetti Squash

Ingredients
- 2 medium spaghetti squash, halved and seeds removed
- 2 tablespoons extra virgin olive oil
- 4 cloves garlic, smashed
- kosher salt and black pepper
- 1 can (14 ounce) san marzano tomatoes
- 1 teaspoon smoked paprika
- 1 teaspoon dried oregano
- 1-2 teaspoons crushed red pepper flakes
- 1/2 teaspoon fennel seeds
- 1/2 teaspoon onion powder
- 1/4 cup fresh basil, roughly chopped
- 1/2 cup basil pesto, homemade or store bought
- 8 ounces mozzarella, torn
- 1/4 cup panko bread crumbs (optional)
- 1/2 cup grated parmesan cheese
Instructions
- 1. Preheat the oven to 425 degrees F.2. Place the squash on a plate and microwave 3 minutes. Let cool slightly, then cut in half lengthwise, scoop out the seeds and discard. 3. Place the squash in a baking dish and rub the cut sides with olive oil, season with salt and pepper. Place 1 garlic clove in the center of each squash. Transfer to the oven and bake 30-40 minutes, until the squash is tender and the garlic roasted.4. In a blender or food processor, combine the roasted garlic cloves, tomatoes, paprika, oregano, crushed red pepper, fennel, and onion powder. Season with salt and pepper. Pulse until combined, about 1 minute. Stir in the basil and pesto. 5. Spoon the tomato sauce evenly into each spaghetti squash half. Top with mozzarella, bread crumbs, if using, and parmesan. Return to the oven and roast another 10-15 minutes, until the cheese is melted. 6. Let the squash sit 5 minutes, then use a fork to scrape the squash into strands, mixing the cheese with the squash. Serve topped with fresh basil.
Nutrition
Nutritional information is only an estimate. The accuracy of the nutritional information for any recipe on this site is not guaranteed.
Did you make this recipe? Please rate & comment below.

























many people have difficulty with Tomatoes as they contain Lectins which cause joint inflammation. Have you made it without the sauce? https://www.webmd.com/diet/foods-high-in-lectins.
Seems a three cheese with spices and diced chicken or Italian sausage would work too. Thoughts?
Hey Linda! Yes, you absolutely can use italian sausage in this recipe if you’d like! I’ve never made this without the sauce, this sauce is really what makes the recipe! ๐ xT
Just made this and it was yummy! Next time I will make even more sauce. Highly recommend. Iโve made spaghetti squash before, but this recipe is my new favorite!
Hey Jauquese,
Happy Sunday! So glad to hear this recipe turned out well for you, thanks a lot for giving it a try! xx
This Spicy tomato Spaghetti Squash was excellent! I will definitely make it again and again!!
Hey Joy,
Happy Sunday!!๐ Thanks a bunch for making this recipe and your review, so glad it was enjoyed:) xx
This is the best spaghetti squash recipe Iโve ever made. The sauce is perfectly flavored! Will be making it again tonight with the addition of some meatless Italian sausage we have on hand.
Hey Seija,
Happy Monday!!โ๏ธ I truly appreciate you making this recipe and sharing your review, so glad it was enjoyed! xT
Delicious ! BEST spaghetti squash recipe ive found that is saucy enough get through the whole squash ! Im not a squash fan but i eat it because i know its good for me ?
Anxious to see what other recipes you have to try ?
Hey Sami,
Fantastic!! I am thrilled to hear that this recipe was a winner, thanks so much for making it! xTieghan
Second time making this. Made my husband like the squash. I add chicken sausages to the sauce (for my husband)
Itโs a keeper.
Hi Louise,
Happy Sunday! Thanks a lot for making this recipe, I love to hear that it was a winner. xxTieghan
This is so good! I added some spicy chicken sausage to the sauce after blending, and it was perfect. Definitely going to be my go-to spaghetti squash red sauce recipe. Thank you Tieghan!!
Hi there! Thanks so much for trying out this recipe, I’m so glad you enjoyed it! ๐ xTieghan