Creamy Parmesan Spinach Stuffed Spaghetti Squash

Featured in Zucchini Mains.

Hearty Spinach Stuffed Spaghetti Squash in creamy Parmesan sauce. A comforting, easy weeknight meal with a secret ingredient for extra flavor!
Anya Sharma - Recipe Author
Updated on Thu Jan 08 2026 at 02:50 AM
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Creamy Parmesan Spinach Stuffed Spaghetti Squash | Natura Recipes

Remember that time I tried to be all fancy with dinner, and ended up with a kitchen that looked like a flour bomb went off? Yeah, that’s my usual. But honestly, sometimes those chaotic moments lead to something truly special. This Creamy Parmesan Spinach Stuffed Spaghetti Squash recipe? It’s one of those happy accidents, born from a desire for something comforting but also, you know, not too heavy. I first stumbled upon the idea years ago, trying to use up a rogue spaghetti squash sitting on my counter. I was skeptical, to be real, but the smell of roasted squash mingling with garlic and melting cheese? It just pulled me in. This dish, with its creamy sauce and savory filling, really feels like a warm hug after a long day.

I remember one time, I was so excited to make this Spinach Stuffed Spaghetti Squash, I forgot to roast the squash halves cut-side down. The result? A watery mess! Oops. I learned the hard way that a little attention to detail, even in my usual kitchen chaos, makes all the difference. But hey, that's how we learn, right? Now, it's a staple, and I even have a few tricks up my sleeve to make it even better.

Ingredients for Spinach Stuffed Spaghetti Squash

  • Spaghetti Squash: This is our star! Choose one that feels heavy for its size. Honestly, don't rush the roasting, that's where the magic happens and you get those lovely strands.
  • Fresh Spinach: So much better than frozen here. It wilts down to almost nothing, so grab a big bag. I tried frozen once, and it made the filling a bit too watery, had to squeeze it out like crazy.
  • Ricotta Cheese: Gives the filling that creamy, dreamy texture. Full-fat, please! I mean, we're making comfort food here, not diet food. More garlic, less salt in the filling is my quirky preference, always.
  • Parmesan Cheese: Freshly grated, always. The pre-shredded stuff just doesn't melt right, and it tastes... dusty. I made that mistake once, and my sauce looked grainy, a total disaster!
  • Cream Cheese: My secret weapon for an extra velvety, rich sauce. It adds a subtle tang and makes the sauce feel so luxurious. I saw my grandma do something similar once, and it just stuck with me.
  • Garlic & Onion: The aromatic backbone! I always add more garlic than a recipe calls for, because, well, garlic. You can smell it cooking, and it just makes the whole house feel warm and inviting.
  • Milk & Chicken Broth: The base for our creamy sauce. Whole milk is my go-to for richness. The broth adds a depth of flavor that water just can't touch.
  • Nutmeg: Just a tiny pinch in the spinach filling. It sounds weird, but trust me, it elevates the flavor and makes it sing. It’s like a little secret spice that makes people say, “What is that?”

Instructions for Spinach Stuffed Spaghetti Squash

Prep & Roast Your Squash:
First things first, let's get that spaghetti squash ready. Carefully slice your squash in half lengthwise this can be a bit of a workout, honestly, so be careful! Scoop out all those seeds and stringy bits. Drizzle the cut sides with a little olive oil, then sprinkle with salt and pepper. Place them cut-side down on a baking sheet. I always forget to salt the water when I make pasta, but I never forget to season my squash! Roast at 400°F (200°C) for about 30-40 minutes, or until it’s tender enough that you can easily pierce it with a fork. You want it caramelized just a touch, not mushy, so keep an eye on it.
Whip Up the Spinach Filling:
While the squash is doing its thing, let’s make the filling. In a large pan, heat a splash of olive oil over medium heat. Add your chopped onion and sauté until it’s soft and translucent, about 5 minutes. Then, toss in that minced garlic and cook for another minute until fragrant oh, the smell! Don't let it burn, that's a mistake I've made too many times. Add your fresh spinach, a big handful at a time, and let it wilt down. Once it's all wilted, remove it from the heat and let it cool slightly. Squeeze out any excess water from the spinach this is crucial, hon, or your filling will be watery!
Combine Filling Ingredients:
In a medium bowl, combine your cooled, squeezed spinach with the ricotta cheese, a beaten egg, about half a cup of shredded mozzarella, a good pinch of salt, pepper, and that tiny dash of nutmeg. Give it a good stir until everything is nicely combined. This is where the magic really starts to happen, seeing all those flavors come together! It should look creamy and vibrant. Taste it! Adjust seasonings if you need to, because you’re the boss of your kitchen.
Make the Creamy Parmesan Sauce:
Now for the sauce that makes this Spinach Stuffed Spaghetti Squash so good! In a saucepan, melt some butter over medium heat. Whisk in the flour and cook for about a minute, creating a roux. Slowly, and I mean slowly, whisk in the milk and chicken broth. Keep whisking until the sauce thickens and is smooth no lumps, please! Stir in the cream cheese until it’s completely melted and smooth, then add the grated Parmesan cheese. Let it melt in, stirring constantly. Season with salt and pepper to taste. Oh, this smells so good, creamy and cheesy!
Stuff and Bake Your Squash:
Once your spaghetti squash is roasted and cool enough to handle, use a fork to gently scrape the strands away from the sides, but leave them in the shells. You don't want to completely pull them out, just loosen them up. Spoon the spinach and ricotta filling evenly into each squash half, pressing it down gently. Then, ladle that glorious creamy Parmesan sauce right over the filling in each squash. Don't be shy, get it all in there! It might get a little messy, but that's part of the fun, right?
Final Bake & Serve:
Sprinkle the remaining mozzarella cheese and a little extra Parmesan over the top of each stuffed squash half. Pop them back into the oven at 375°F (190°C) for about 15-20 minutes, or until the cheese is bubbly and golden brown. When it comes out, the kitchen will smell incredible. Let it cool for just a few minutes before serving. I love to garnish with fresh parsley and a sprinkle of red pepper flakes for a little kick. The strands will be tender, the filling savory, and that sauce... oh, that sauce is everything.

Making this Spinach Stuffed Spaghetti Squash always brings a little calm to my kitchen, even amidst the usual flour dust and scattered measuring spoons. There’s something so satisfying about transforming a simple squash into such a hearty, flavorful meal. It’s a dish that feels like a triumph, especially when it comes out of the oven, bubbling and golden. It’s become a go-to for when I need a little kitchen comfort.

Storage Tips for Your Spinach Stuffed Spaghetti Squash

Okay, so you've got leftovers of this amazing Spinach Stuffed Spaghetti Squash, which is a win in itself! This dish actually holds up pretty well. Once cooled, transfer the individual squash halves to an airtight container. They'll keep happily in the fridge for up to 3 days. When it's time to reheat, I usually pop them back into the oven at around 350°F (175°C) for about 15-20 minutes, or until warmed through. This helps the cheese get melty again and keeps the squash from getting too soft. I microwaved it once, and the sauce separated a little and the squash got a bit watery so don't do that lol, unless you're in a super rush. The texture won't be quite as perfect as fresh, but the flavors are still there, comforting as ever.

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Creamy Parmesan Spinach Stuffed Spaghetti Squash - Image 1 | Natura Recipes

Ingredient Substitutions for Spinach Stuffed Spaghetti Squash

Life happens, and sometimes you don't have exactly what the recipe calls for. For the spinach, if fresh isn't available, you can use frozen, but please, for the love of all that is good, thaw it completely and squeeze out as much water as humanly possible. I tried this once, and it worked... kinda, but it needed serious draining. For the ricotta, cottage cheese works in a pinch for the filling, I’ve used it, and it gives a slightly tangier, lumpier texture, but it's still good. You could even use some softened cream cheese if you're really out of options. If you want to make the sauce lighter, you could use skim milk, but honestly, don't use skim milk the creamy texture is part of the magic! Chicken broth can be swapped for vegetable broth if you prefer, or even just water if you're in a bind, though the flavor won't be quite as rich for your Spinach Stuffed Spaghetti Squash.

Serving Your Spinach Stuffed Spaghetti Squash

This Spinach Stuffed Spaghetti Squash is a hearty meal all on its own, but sometimes you just want a little something extra, right? I love serving it with a simple, crisp green salad with a light vinaigrette it cuts through the richness beautifully. A slice of crusty garlic bread is also non-negotiable in my house, perfect for mopping up any extra creamy sauce. For drinks, a crisp white wine like a Sauvignon Blanc or even just some sparkling water with lemon pairs wonderfully. This dish and a rom-com? Yes please, that's my ideal Friday night! It's comforting enough for a chilly evening, but not so heavy you feel sluggish. It’s adaptable for so many moods and occasions.

Cultural Backstory of Stuffed Squash

While this particular Creamy Parmesan Spinach Stuffed Spaghetti Squash recipe is my own spin, the idea of stuffing vegetables is ancient and global. Cultures around the world have embraced the concept of taking a humble vegetable and filling it with savory goodness. Think about Greek yemistes (stuffed vegetables), Turkish dolmas, or even Italian stuffed bell peppers. It's a testament to human ingenuity in making the most of seasonal produce. For me, stuffing a spaghetti squash specifically feels like a modern, healthier twist on classic pasta bakes, giving you all the comfort without the heavy carb load. It became special to me because it was a way to make a vegetable I wasn't super familiar with feel like a familiar, comforting friend in my kitchen, a dish that always surprises people with how delicious it is.

So there you have it, my take on a truly comforting meal. This Spinach Stuffed Spaghetti Squash, despite any kitchen mishaps along the way, always turns out to be a showstopper. It’s got that home-cooked warmth, that creamy indulgence, and that little bit of personal history in every bite. I really hope you give it a try and maybe even share your own kitchen chaos stories with me. Happy cooking, friends!

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Creamy Parmesan Spinach Stuffed Spaghetti Squash - Image 2 | Natura Recipes

Frequently Asked Questions

→ Can I make this Spinach Stuffed Spaghetti Squash ahead of time?

You can definitely prep parts of it! Roast the squash and make the filling a day ahead. Store them separately in the fridge. Assemble and bake just before serving for the best results, trust me, it’s worth it!

→ What if I don't have spaghetti squash?

While it won't be a Spinach Stuffed Spaghetti Squash without it, you could try stuffing other winter squashes like acorn or butternut, though the texture will be different. Or, use zucchini boats!

→ My sauce isn't thickening. What did I do wrong?

Oh, I've been there! Usually, it means it needs more time on the heat, or perhaps a little more flour whisked in. Keep whisking gently over medium-low heat, it'll get there. Don't crank the heat too high!

→ How long does this Spinach Stuffed Spaghetti Squash last in the fridge?

Once cooked, it's good for up to 3 days in an airtight container. The sauce can get a tad bit thicker, but the flavors stay delicious. Reheat gently in the oven for the best texture.

→ Can I add meat to the Spinach Stuffed Spaghetti Squash filling?

Absolutely! Cooked ground sausage or shredded chicken would be amazing. Just brown it first and mix it into the spinach filling. I've tried it with Italian sausage, and it was a hearty, delicious twist!

Creamy Parmesan Spinach Stuffed Spaghetti Squash

Hearty Spinach Stuffed Spaghetti Squash in creamy Parmesan sauce. A comforting, easy weeknight meal with a secret ingredient for extra flavor!

4.4 out of 5
(51 reviews)
Prep Time
20 Minutes
Cook Time
55 Minutes
Total Time
75 Minutes

Category: Zucchini Mains

Difficulty: Intermediate

Cuisine: American

Yield: 4 Servings

Dietary: Vegetarian

Published: Sat Nov 22 2025 at 04:26 PM

Last Updated: Thu Jan 08 2026 at 02:50 AM

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Ingredients

→ Base Ingredients

01 1 medium spaghetti squash (about 3 lbs)
02 1 tbsp olive oil
03 Salt and freshly ground black pepper, to taste

→ Spinach Filling

04 1 tbsp olive oil
05 1/2 medium yellow onion, finely chopped
06 3 cloves garlic, minced
07 5-6 oz fresh spinach (about 5-6 cups)
08 1 cup ricotta cheese (full-fat recommended)
09 1 large egg, lightly beaten
10 1/2 cup shredded mozzarella cheese (plus more for topping)
11 1/4 tsp ground nutmeg
12 Salt and pepper, to taste

→ Creamy Parmesan Sauce

13 2 tbsp unsalted butter
14 2 tbsp all-purpose flour
15 1 1/2 cups whole milk
16 1/2 cup chicken broth (or vegetable broth)
17 2 oz cream cheese, softened
18 1/2 cup grated Parmesan cheese
19 Salt and pepper, to taste

→ Finishing Touches

20 Fresh parsley, chopped, for garnish
21 Red pepper flakes, for garnish (optional)

Instructions

Step 01

First things first, let's get that spaghetti squash ready. Carefully slice your squash in half lengthwise – this can be a bit of a workout, honestly, so be careful! Scoop out all those seeds and stringy bits. Drizzle the cut sides with a little olive oil, then sprinkle with salt and pepper. Place them cut-side down on a baking sheet. I always forget to salt the water when I make pasta, but I never forget to season my squash! Roast at 400°F (200°C) for about 30-40 minutes, or until it’s tender enough that you can easily pierce it with a fork. You want it caramelized just a touch, not mushy, so keep an eye on it.

Step 02

While the squash is doing its thing, let’s make the filling. In a large pan, heat a splash of olive oil over medium heat. Add your chopped onion and sauté until it’s soft and translucent, about 5 minutes. Then, toss in that minced garlic and cook for another minute until fragrant – oh, the smell! Don't let it burn, that's a mistake I've made too many times. Add your fresh spinach, a big handful at a time, and let it wilt down. Once it's all wilted, remove it from the heat and let it cool slightly. Squeeze out any excess water from the spinach – this is crucial, hon, or your filling will be watery!

Step 03

In a medium bowl, combine your cooled, squeezed spinach with the ricotta cheese, a beaten egg, about half a cup of shredded mozzarella, a good pinch of salt, pepper, and that tiny dash of nutmeg. Give it a good stir until everything is nicely combined. This is where the magic really starts to happen, seeing all those flavors come together! It should look creamy and vibrant. Taste it! Adjust seasonings if you need to, because you’re the boss of your kitchen.

Step 04

Now for the sauce that makes this Spinach Stuffed Spaghetti Squash so good! In a saucepan, melt some butter over medium heat. Whisk in the flour and cook for about a minute, creating a roux. Slowly, and I mean *slowly*, whisk in the milk and chicken broth. Keep whisking until the sauce thickens and is smooth – no lumps, please! Stir in the cream cheese until it’s completely melted and smooth, then add the grated Parmesan cheese. Let it melt in, stirring constantly. Season with salt and pepper to taste. Oh, this smells so good, creamy and cheesy!

Step 05

Once your spaghetti squash is roasted and cool enough to handle, use a fork to gently scrape the strands away from the sides, but leave them in the shells. You don't want to completely pull them out, just loosen them up. Spoon the spinach and ricotta filling evenly into each squash half, pressing it down gently. Then, ladle that glorious creamy Parmesan sauce right over the filling in each squash. Don't be shy, get it all in there! It might get a little messy, but that's part of the fun, right?

Step 06

Sprinkle the remaining mozzarella cheese and a little extra Parmesan over the top of each stuffed squash half. Pop them back into the oven at 375°F (190°C) for about 15-20 minutes, or until the cheese is bubbly and golden brown. When it comes out, the kitchen will smell incredible. Let it cool for just a few minutes before serving. I love to garnish with fresh parsley and a sprinkle of red pepper flakes for a little kick. The strands will be tender, the filling savory, and that sauce... oh, that sauce is everything.

Notes

  1. Don't overcrowd your baking sheet when roasting the squash, it steams instead of caramelizes, and honestly, who wants mushy squash?
  2. Leftovers keep beautifully in an airtight container for up to 3 days. Reheat gently in the oven or microwave, but be warned, the microwave can make the sauce a little less velvety.
  3. If you're out of ricotta, cottage cheese works in a pinch for the filling. I tried it once when I was desperate, and it was... surprisingly good, just make sure to drain it well!
  4. A sprinkle of toasted pine nuts on top adds a lovely crunch and makes this Spinach Stuffed Spaghetti Squash feel extra fancy without much effort.

Tools You'll Need

  • Baking sheet
  • large pan
  • medium bowl
  • saucepan
  • whisk
  • sharp knife
  • fork

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Dairy
  • Eggs

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 450
  • Total Fat: 28g
  • Total Carbohydrate: 30g
  • Protein: 25g

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