Comforting Cheesy Spaghetti Squash Bake

Ultimate Baked Cheesy Spaghetti Squash Recipe: A Cozy & Healthy Pasta Alternative

This Baked Cheesy Spaghetti Squash Recipe is an absolute game-changer for your fall and winter meal rotation. It’s incredibly easy to prepare, exceptionally flavorful, and offers a comforting, hearty experience perfect for chilly evenings. Forget the fuss of complex dishes; this recipe guides you through effortlessly baking spaghetti squash and transforming its natural, noodle-like strands into a delightful base for a rich, creamy, and utterly delicious cheesy sauce. You’re going to fall in love with this wholesome and satisfying meal, making it a staple in your home!

Baked Cheesy Spaghetti Squash Recipe in squash bowl, ready to eat.

While nothing can truly replicate the unique texture and taste of traditional wheat pasta, spaghetti squash noodles come remarkably close as a fantastic and healthy alternative. Many home cooks are already familiar with this brilliant technique of creating low-carb, vegetable-based noodles from this versatile squash.

What makes spaghetti squash so appealing is its incredible versatility. Beyond today’s Baked Cheesy Spaghetti Squash Recipe, where it’s lovingly embraced by a rich cheese sauce, you can pair these tender strands with a vibrant pesto, simple melted butter and fresh herbs, or a light drizzle of extra virgin olive oil and your favorite spices. Once you discover how simple and satisfying it is to prepare spaghetti squash, you’ll find yourself incorporating it into your meals time and time again – it’s truly addictive!

Why Choose Spaghetti Squash? The Healthy Pasta Alternative

Spaghetti squash is more than just a low-carb alternative; it’s a nutritional powerhouse. Naturally low in calories and carbohydrates, it’s packed with vitamins, minerals, and dietary fiber, making it an excellent choice for those looking to eat healthier without sacrificing flavor. Its mild flavor profile also means it readily absorbs the delicious tastes of whatever sauce or seasoning you pair it with, making it a fantastic canvas for a variety of culinary creations. For those managing carb intake or simply seeking to add more vegetables to their diet, spaghetti squash is an absolute win-win.

Embracing Winter Squashes: A Seasonal Delight

The colder months of fall and winter bring with them an abundance of delicious winter squashes, and I eagerly await this time of year to indulge in them. Their earthy flavors and comforting textures are perfect for creating hearty, warming dishes. Beyond spaghetti squash, some of my personal favorites for this season include: this incredibly flavorful Parmesan Delicata Squash, a hearty Mediterranean Stuffed Acorn Squash, or the sweet and savory Butternut Squash Apple Bake. Each offers a unique way to enjoy the rich bounty of the season.

The Best Method for Cooking Spaghetti Squash: Roasting

There are several methods for cooking spaghetti squash, including in the microwave, slow cooker, Instant Pot, or roasting in the oven. After experimenting with a few different ways, I’ve found that roasting in the oven is by far the superior method, especially for this cheesy recipe. Roasting helps to intensify the squash’s natural sweetness and flavor, giving it a depth that other methods simply can’t achieve. More importantly, it creates perfectly al dente spaghetti-like strands that are firm and distinct, not mushy or watery, which is crucial for a satisfying pasta-like experience. This technique ensures your cheesy sauce clings beautifully to every strand.

Recipe Ingredients: Simple & Flavorful

Ingredients for Baked Cheesy Spaghetti Squash Recipe laid out on a table.

You’ll absolutely adore how straightforward this recipe is, especially given the simple yet impactful ingredients used to create this incredible dish. It quickly became one of my all-time favorite ways to enjoy spaghetti squash!

  • Spaghetti Squash: The star of our show! When perfectly roasted, a spaghetti squash transforms into long, distinct, pasta-like strands that serve as a savory, delicious, and healthy base for this meal. Make sure to select a ripe squash for the best flavor and texture.
  • Pesto: This adds a vibrant, herbaceous, and garlicky kick to our cheesy sauce. You have the flexibility to use your favorite store-bought pesto for convenience, or if you’re feeling ambitious, a fresh homemade pesto will elevate the flavors even further.
  • Cheese Blend: The secret to the ultimate cheesy experience lies in our harmonious blend of cheeses. This recipe calls for creamy ricotta cheese for a smooth, rich texture; shredded mozzarella cheese for that irresistible melty pull; and grated Parmesan cheese to add a salty, umami depth that perfectly complements the squash. Together, they create a truly decadent cheesy mixture that envelops every strand of spaghetti squash.
  • Milk (or Cream): A splash of milk or cream is essential for achieving the perfect consistency in our cheese sauce, ensuring it’s smooth, luscious, and evenly distributed throughout the squash.
  • Salt & Pepper: Simple yet vital for seasoning the squash and enhancing all the delightful flavors in the cheese sauce.
  • Olive Oil: A little olive oil is used to rub the squash before baking, helping it roast beautifully and preventing it from drying out.
  • Fresh Herbs (Thyme & Parsley): While optional, a garnish of fresh thyme and parsley adds a touch of freshness, color, and aromatic brightness to the finished dish, making it look as good as it tastes.
Close-up of Baked Cheesy Spaghetti Squash Recipe with a fork lifting some strands.

How to Make This Delicious Baked Cheesy Spaghetti Squash

Creating this satisfying dish is surprisingly simple. Follow these straightforward steps for a perfect meal:

Step 1: Prepare and Bake the Squash

Begin by preheating your oven to 400°F (200°C). Carefully cut the spaghetti squash in half lengthwise and scoop out the seeds and stringy bits. Sprinkle a generous amount of coarse salt over the cut sides of the squash and let it sit for about 15 minutes. This crucial step helps to draw out excess moisture, preventing your squash from becoming watery during baking and ensuring firmer “noodles.” After 15 minutes, pat the squash dry, then rub about 1 teaspoon of olive oil over the cut surfaces.

Place the squash halves, cut side down, onto a parchment-lined baking sheet. This orientation allows the squash to steam gently within its shell, resulting in tender strands. Bake for approximately 20-30 minutes, or until the squash is slightly soft to the touch when pressed. The exact time will depend on the size of your squash. Remove from the oven but keep it on the baking sheet.

Baked spaghetti squash halves with cheese mixture on top, ready for final baking.

Step 2: Prepare the Creamy Cheese Sauce

While the squash is baking, begin preparing your indulgent cheese sauce. In a medium-sized bowl, combine the vibrant pesto with the creamy ricotta cheese, 3/4 cup of the shredded mozzarella, and the grated Parmesan cheese. Add the milk (or cream) and stir vigorously until all ingredients are well combined and the sauce is smooth and uniform. Season generously with salt and freshly ground black pepper to taste. You want a sauce that is rich and flavorful, so don’t be shy with the seasoning.

Once the partially baked squash is cool enough to handle, use a fork to gently scrape the strands from the inside of each squash half, being careful not to pierce the skin. Loosely mix these scraped spaghetti squash strands with the prepared cheese sauce directly in the squash “boats.” This ensures every strand is coated in cheesy goodness.

Cover the filled spaghetti squash boats with aluminum foil and return them to the oven. Bake for an additional 20 minutes, allowing the flavors to meld and the squash to finish cooking perfectly.

Mixed ingredients for Baked Cheesy Spaghetti Squash Recipe in a bowl.

Step 3: The Golden Finish & Serving

After 20 minutes, carefully remove the foil. Sprinkle the remaining 1/4 cup of mozzarella cheese over the top of each squash boat. Return to the oven and bake uncovered for another 5-10 minutes, or until the cheese is beautifully melted, bubbly, and slightly golden brown. Keep a close eye on it to prevent over-browning.

Once perfection is achieved, take the baked cheesy spaghetti squash out of the oven. With the help of a fork, gently scrape the strands again, this time combining them thoroughly with the warm, gooey sauce and melted cheese. Garnish generously with fresh thyme and parsley for a burst of color and herbaceous flavor. Serve warm and savor every comforting bite!

Creative Ways to Serve Spaghetti Squash Beyond This Recipe

Aside from the delectable cheesy creamy sauce featured in this recipe, roasted spaghetti squash is incredibly versatile and can be enjoyed in a myriad of other delicious ways. Its mild flavor makes it a perfect canvas for many different cuisines and preparations:

  • Classic Pesto Perfection: Mixing the tender spaghetti squash noodles with a generous dollop of pesto is a wonderfully simple and flavorful way to enjoy it. The vibrant basil, garlic, and pine nut flavors of pesto cling beautifully to the squash strands. Try this easy homemade pesto for an authentic taste.
  • Your Favorite Pasta Sauce: Treat your spaghetti squash just like you would traditional pasta. It’s fantastic with your favorite marinara, a rich Bolognese, or even a creamy Alfredo sauce. I particularly love adding a hearty slow cooker spaghetti sauce to mine for a truly comforting meal.
  • Boost with Protein: Elevate your spaghetti squash into a complete, satisfying meal by adding your favorite protein. It pairs wonderfully with baked chicken, savory meatballs, or even grilled shrimp. Consider topping it with Chicken Parmesan, flavorful Mediterranean Turkey Meatballs, or hearty Pork Meatballs. For a vegetarian protein boost, try roasted chickpeas or crumbled feta.
  • Simple Olive Oil & Herbs: Sometimes, simplicity is key. I often serve my roasted spaghetti squash with just a drizzle of high-quality extra virgin olive oil and a sprinkle of fresh herbs like basil, oregano, or rosemary. You can also enhance the flavor with spices like aromatic za’atar, classic Italian seasoning, or a pinch of crushed red pepper flakes for a subtle heat.
  • Crunchy Breadcrumb Topping: For an added layer of texture and flavor, I adore sprinkling regular breadcrumbs or crispy panko breadcrumbs over the cheese during the last few minutes of baking. They toast beautifully, creating a golden, crunchy crust that contrasts wonderfully with the soft squash and creamy sauce.
  • As a Side Dish: Spaghetti squash, lightly seasoned, makes an excellent healthy side dish to any main course, from roasted chicken to grilled fish.

Baked Cheesy Spaghetti Squash Recipe topped with fresh cheese and herbs.

Storage Tips for Leftover Cheesy Spaghetti Squash

Proper storage ensures your delicious leftovers remain enjoyable. Here’s how to best handle your baked cheesy spaghetti squash:

  • Reheating: For best results, reheat individual portions in a skillet over medium-low heat, stirring occasionally until warmed through. This helps to maintain a good texture. You can also reheat it in the microwave in short bursts, stirring between each, though the texture might be slightly softer.
  • Refrigerator: Any leftover cheesy spaghetti squash should be transferred to an airtight container and stored in the refrigerator. It will stay fresh and delicious for up to 3-5 days.
  • Freezer: I personally do not suggest freezing spaghetti squash, especially when combined with a cheesy sauce. The squash tends to become quite soggy and mushy upon thawing, and the sauce can separate, compromising the overall texture and appeal of the dish. It’s best enjoyed fresh or from the fridge.

Frequently Asked Questions About Baked Cheesy Spaghetti Squash

How do you ensure the spaghetti squash isn’t overcooked?

Overcooking spaghetti squash is a common mistake that can lead to watery, mushy strands. To avoid this, always place the squash cut side down on your baking sheet. For a typical 2-pound squash, I find about 40 minutes of total roasting time (before adding the cheese and final bake) is ideal. If you have a smaller squash, start checking it after about 30 minutes. The best way to check for doneness is to carefully flip one half over and run a fork down the top edge of the squash. If the strands easily scrape away into distinct “noodles,” it’s perfectly cooked. If it still feels resistant, continue baking for another 5-10 minutes.

How do I know if a spaghetti squash is ripe?

To pick the best squash for your recipe, look for one that is a rich golden yellow or a deep yellowish color. Avoid any squash with green patches, as this indicates it’s underripe. The skin of a ripe squash should feel hard and thick; it should not be easily indented with your fingernail. If you can poke your nail through the skin, it’s likely not ripe yet. Also, check for any soft spots or blemishes, which could indicate spoilage.

Can I make this baked cheesy spaghetti squash ahead of time?

You can certainly do some prep work in advance! You can bake the spaghetti squash halves and scrape out the strands, then store them in an airtight container in the fridge for up to 2-3 days. You can also prepare the cheese sauce a day ahead and keep it refrigerated. When ready to serve, combine the squash and sauce, fill the boats, and proceed with the baking steps as directed. While the final dish is best fresh, this pre-prep can save you time on a busy weeknight.

How do I safely cut a spaghetti squash?

Spaghetti squash can be tough to cut! For safety, stabilize the squash on a cutting board. If it wobbles, slice a small piece off one side to create a flat base. Use a large, sharp chef’s knife. Carefully insert the tip of the knife into the center of the squash and press down firmly and slowly, rocking the knife back and forth if needed. You can also pierce the skin a few times with a fork and microwave the whole squash for 2-3 minutes to soften it slightly before cutting, making the process much easier and safer.

More Delicious Squash Recipes to Explore

Vegetarian

Butternut Squash Apple Bake

Sides

Parmesan Delicata Squash

Pasta

Butternut Squash Pasta

Vegetarian

Za’atar Roasted Delicata Squash

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Baked Cheesy Spaghetti Squash Recipe

By Julia Jolliff
Prep: 15 minutes
Cook: 1 hour
Total: 1 hour 15 minutes
Servings: 2 servings
Baked Cheesy Spaghetti Squash Recipe 1200 x 1200
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This Baked Cheesy Spaghetti Squash Recipe is an easy fall and winter recipe. I share how to easily bake a spaghetti squash and use the squash noodles as a base for a delicious cheesy sauce. This comforting meal is a fantastic low-carb alternative to pasta!

Ingredients 

  • 1 Spaghetti squash, halved and deseeded
  • 1 teaspoon olive oil
  • Coarse salt and freshly ground pepper to taste
  • 3 tablespoons pesto
  • 1/3 cup ricotta cheese
  • 1 cup mozzarella cheese, shredded + divided
  • 1/2 cup parmesan cheese
  • 3/4 cup milk, or cream
  • Fresh thyme , for garnish (optional)
  • Fresh parsley, for garnish (optional)

Instructions 

  • Start by preheating the oven to 400 degrees F (200 C). Carefully cut the spaghetti squash in half lengthwise and scoop out the seeds and stringy bits. Sprinkle the cut sides of the spaghetti squash generously with coarse salt and let sit for 15 minutes to draw out moisture. Pat dry.
  • Rub the 1 teaspoon of olive oil over the two halves of the spaghetti squash. Place the squash cut side down on a parchment-lined baking sheet.
  • Bake for 20-30 minutes, or until the squash is slightly soft when pressed. Remove from the oven.
  • Meanwhile, prepare the cheese sauce. In a bowl, combine the pesto with the ricotta cheese, 3/4 cup of the mozzarella, and parmesan cheese.
  • Add the milk (or cream) and stir to combine until smooth. Season with salt and pepper to taste.
  • Once the squash is cool enough to handle, gently scrape the strands with a fork, then loosely mix them with the cheese sauce directly inside the squash boats. Cover with aluminum foil and bake for another 20 minutes.
  • Remove the foil, sprinkle with the remaining 1/4 cup mozzarella cheese, and bake for another 5-10 minutes, or until the cheese is slightly golden and bubbly.
  • Take out of the oven and, with the help of a fork, scrape into strands, thoroughly combining with the sauce. Garnish with fresh thyme and parsley (if using) and enjoy warm.

Notes

  • I love to add some fresh thyme on top to give it some herby flavor, but it’s entirely optional. Fresh parsley also works beautifully for a vibrant finish.

Nutrition

Calories: 630kcal, Carbohydrates: 43g, Protein: 33g, Fat: 38g, Saturated Fat: 19g, Polyunsaturated Fat: 2g, Monounsaturated Fat: 8g, Cholesterol: 95mg, Sodium: 1114mg, Potassium: 768mg, Fiber: 8g, Sugar: 19g, Vitamin A: 1939IU, Vitamin C: 10mg, Calcium: 924mg, Iron: 2mg

Nutrition information is automatically calculated, so should only be used as an approximation.

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