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Taking classic pasta, and swapping in seasonal squash, with this 4 Cheese Roasted Garlic Alfredo Stuffed Spaghetti Squash. Roasted spaghetti squash stuffed with a creamy 4 cheese béchamel sauce, with fresh sage and sweet buttery roasted garlic. Everything is baked together until the cheese is melted and perfect. This is an easy, delicious, and healthier way to enjoy pasta night.
I tell this story every single time I share a spaghetti squash recipe, but spaghetti squash was one of the very first foods I learned to cook for myself. Growing up, my mom would occasionally roast up spaghetti squash in the fall. We’d eat it pretty simply, with just butter and salt.
Honestly? It was so good, I really loved it. When I got to be a teenager, I started cooking it for myself on weeknights. I went through a phase where I swear, I only ate spaghetti squash for like a month plus…and then I took a long break.
These days I have a much healthier, balanced relationship with this veggie. But it’s still a favorite autumn squash of mine!
When I realized spaghetti squash was back in season, I began thinking up recipes immediately. I have a million and one of them, but stuffing with an alfredo sauce just sounded way too good.
Buttery roasted squash with 4-kinds of cheese and sweet roasted garlic butter…just perfect for welcoming in cooler autumn days.
The details are simple – start with all that cheese
I love to use a 4 cheese blend of fontina, mozzarella, provolone, and parmesan. It’s a really nice mix of creamy cheeses, but the provolone adds all the flavor. Of course, you can also use your favorite blend of cheese. Or even pick up a pre-shredded mix from the store to keep things really easy.
For the herbs, I knew I really wanted to include sage for added warmth. I threw the sage in along with fresh thyme. Then I tossed the cheese with a bit of milk to create a creamy “cheese béchamel” sauce to stuff the squash with.
The spaghetti squash
Next, prep the spaghetti squash. I like to microwave the squash for a few minutes to make them easier to cut in half. I know all too well that cutting through spaghetti squash can be super dangerous. Microwaving the squash makes it so much easier to cut if you’re having trouble.
When you have the squash all prepped, season it up with salt and pepper and stuff with the cheese mix. Then finish each squash off with parmesan and bake.
While the squash bakes, roast the garlic
If you’ve never roasted garlic before, I’m here to tell you that it’s truly amazing. Slow roasted garlic loses its intense garlic flavor and instead takes on a soft sweetness. It’s delicious and so simple to do…like so simple. Just drizzle an entire head of garlic with a little olive oil, wrap in foil, and roast in the oven until the garlic turns a pretty, golden color.
And that’s it. Then mash the garlic into a paste with some butter and fresh sage. As soon as the cheesy squash comes out of the oven, spread on the butter, allowing it to melt over the cheese.
It’s delicious.
When you pull everything out of the oven, don’t be worried that the sauce looks soupy. Once you scrape the squash into strands of spaghetti and mix it together with the sauce it’s so delicious.
This is a great recipe for busy weeknights when you just need to come home and throw something into the oven. Or for when you just want comfort food, but you’re looking for something semi healthier too. Perfect for autumn!
Looking for other autumn squash recipes? Here are a few ideas:
Butternut Squash Pasta Carbonara with Rosemary Bacon
Creamed Spaghetti Squash with Browned Butter Walnuts
Roasted Garlic Spaghetti Squash Lasagna Boats
Lastly, if you make this 4 Cheese Roasted Garlic Alfredo 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, don’t forget to tag me on Instagram! Looking through the photos of recipes you all have made is my favorite!
4 Cheese Roasted Garlic Alfredo Stuffed Spaghetti Squash
Servings: 6
Calories Per Serving: 499 kcal
Nutritional information is only an estimate. The accuracy of the nutritional information for any recipe on this site is not guaranteed.
Watch the How-To Reel
Ingredients
- 1 1/4 cups whole milk or heavy cream
- 6 ounces frozen chopped spinach, thawed and squeezed dry
- 2 tablespoons chopped fresh sage
- 1 tablespoon fresh thyme leaves
- 1 cup shredded fontina cheese
- 1/2 cup shredded mozzarella or creamy gouda
- 1 cup shredded provolone cheese
- 2 medium spaghetti squash, halved and seeds removed
- 1/4 cup grated parmesan
- kosher salt and black pepper
- 1 head garlic
- olive oil
- 2 tablespoons salted butter, at room temperature
Instructions
- 1. Preheat the oven to 425° F. 2. In a medium bowl, mix together the milk, spinach, sage, thyme, fontina, and mozzarella. Season with red pepper flakes, salt, and pepper.3. Place the squash in a baking dish and season the cut sides with salt and pepper. Sprinkle 1/2 of the provolone cheese into the bottom of each squash, then evenly divide the milk/cheese mix among the squash cavities. Top with the remaining provolone and parmesan. Cover the squash with foil. 4. Slice off the top portion of the garlic head to expose some of the cloves. Place the garlic on a piece of foil. Drizzle with olive oil and wrap it up. 5. Bake the squash and garlic for 30 minutes. Remove the foil from both and continue baking the squash and garlic another 15-20 minutes or until the squash is tender and the cheese is golden brown on top.6. Let the garlic cool, then squeeze the cloves out into a bowl. Add the butter and 1 tablespoon sage. Mash the cloves into the butter with a fork. Spread the butter over the squash, then use a fork to scrape the squash into strands, mixing the cheese with the squash. Enjoy!
Notes
Roasting the Squash: if your squash is on the larger side, pre-roast it for 20-30 minutes before adding the cheese mixture.
This post was originally published on September 20, 2021
Second favorite recipe of yours! It is so creamy, cheesy and yummy! Perfect fall dinner. I used fresh spinach because that’s what I had- turned out great. Thank you!
Amazing! Super easy! My house smelled AMAZING and everyone loved it! Great recipe!
Hey Kelly,
Happy Sunday!! I am delighted to hear that this recipe was enjoyed, I truly appreciate you giving it a try! xTieghan
This is the best squash recipe I have ever made. It even tastes amazing lightened up! Skim milk, full block of frozen spinach, 1/2 cup less cheese. You don’t even miss it with that amazing garlic butter. Thank you!
Hi Caitlin,
Happy Sunday!! I am delighted to hear that this recipe was enjoyed, I truly appreciate you giving it a try! xTieghan
These were fantastic and I would totally make them again! I also added some cut up chicken to them and it was perfect!
Hey Samantha,
Happy Friday!! I am thrilled to hear that this recipe was enjoyed, thank you so much for making it! xTieghan
Super, SUPER good. I didn’t have fontina so just replaced with more mozzarella and provolone and it was great, it next time I’ll try to find it. Definitely needed to pre-cook the squash as they were quite big. Will definitely cook again 🙂
Hey Rachelle,
Happy Friday!! I am thrilled to hear that this recipe was enjoyed, thank you so much for making it! xTieghan
So good. I topped it with a bit of leftover chicken…my guys loved it.
Hey Elizabeth,
Happy Friday!! I am thrilled to hear that this recipe was enjoyed, thank you so much for making it! xTieghan
Hands-down the best thing I’ve ever made with spaghetti squash. I wasn’t sure if I was supposed to add 2 tablespoons of sage to the mixture, and an additional tablespoon of sage to the butter- or 1 tablespoon in the mixture and one in the butter. I ended up just putting the 2 tablespoons in the mixture, and mixing the garlic with the butter without any sage.
A pro tip, if you stab your squash a few times and heat it up in the microwave for five minutes (each squash, separately) it’s super easy to cut in half. I didn’t adjust any baking time doing this and it was great.
Hey Jasmine,
Happy Friday!! I am thrilled to hear that this recipe was enjoyed, thank you so much for making it! The sage is added in step 2:) xTieghan
Sage is listed in both step 2 and step six, so I am also confused. I just put two tablespoons of sage in the squash directly, and will add more to the butter. Here’s hoping that’s correct!
Yes, that’s great! I hope it’s delish!
Loved this dinner! This was the best cooked spaghetti squash I have ever made. I will try to freeze leftovers for another time. Thanks!
Hey Mary Clare,
I love to hear that this recipe was enjoyed, I truly appreciate you giving it a try!!? xTieghan
Does this meal keep for good leftovers? I am trying to decide if I should half the recipe or not! Thanks! So excited to try this!
Hey Abby,
Leftovers with this recipe are great, you could also just assemble the full recipe and only bake the ones you think you will eat and bake the rest at a later time. I hope you love the recipe, please let me know if you give it a try! xTieghan
This was delicious! I added a bit more parsley for some added veggies, as well as some garlic to the squash mixture. I think adding some bread crumbs for some added texture would be a good idea as well, but only if you wanted to fiddle around with the recipe. Honestly, it didn’t need any adjustments. It was so so good, and such a different dinner. I made it for a friend who came over for dinner, and they loved it!
added more SPINACH! Not parsley 🙂 🙂
Hi Elaine,
Awesome!! Love to hear that this recipe was enjoyed, thanks so much for giving it a try! xTieghan
Absolutely delicious!
Hi Nanci,
Awesome!! Love to hear that this recipe was enjoyed, thanks so much for giving it a try! xTieghan
I didn’t have all the ingredients so I seasoned it first with extra virgin olive oil, salt, and pepper and then added some leftover spaghetti sauce, oregano, fresh thyme, fontina, and parmesan cheeses. My boyfriend liked it so much he almost ate the shell. It was out of this world! I skipped the garlic. This squash has such a delicate, slightly sweet taste I didn’t want to overwhelm it.
Hey Lucie,
Awesome!! Love to hear that this recipe was enjoyed, thanks so much for giving it a try! xTieghan
Loved this recipe. Served it as a side item with chicken cutlets.
The roasted garlic butter was AMAZING on top!
Mine were kind of large, so they took longer to cook but the whole family liked it.
Hey Heather,
Fantastic!! So great to hear that you enjoyed this recipe and thanks a lot for making it. Have a great week!? xTieghan
Hello. I was wondering if I could sub fresh baby spinach for frozen? If so, would the ratio be the same? Tia
Hey there,
Yes, that would work, although I would cook it down and drain it first. I hope you love this recipe, please let me know if you give it a try! xTieghan
Fantastic! I didnt have spinach so threw in some sauteed mushrooms, and used a preshredded mix of Italian cheeses. A versatile and absolutely delicious recipe!
Hey there,
Fantastic!! So great to hear that you enjoyed this recipe and thanks a lot for making it. Have a great week!? xTieghan
This was delicious and so filling! My meat loving husband loved this veggie dish!
Hi Sandi,
Fantastic!! So great to hear that you enjoyed this recipe and thanks a lot for making it. Have a great week!? xTieghan