Roasted Spaghetti Squash With Alfredo Sauce and Cheese

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Roasted Spaghetti Squash with Alfredo Sauce and Cheese is your new weeknight favorite—creamy, cheesy, and delightfully guilt-free. This dish turns humble spaghetti squash into a luxurious comfort food experience, with its tender, noodle-like strands baked to perfection under a golden layer of bubbling cheese.

Whether you’re cutting carbs or just craving a lighter take on pasta, this recipe hits all the right notes. The rich homemade Alfredo sauce clings to every squash strand, offering that indulgent flavor you love without the heaviness. It’s a cozy meal that feels special but comes together easily enough for any day of the week.

What Kind of Squash Should I Use?

Spaghetti squash is the star here, thanks to its unique texture. Once roasted, its flesh separates into spaghetti-like strands that are perfect for soaking up sauce. Look for a firm, bright yellow squash that feels heavy for its size. A medium squash usually yields enough for two generous servings.

Ingredients for the Roasted Spaghetti Squash With Alfredo Sauce and Cheese

Spaghetti Squash – This acts as your pasta substitute. It has a mild flavor and stringy texture that mimics spaghetti beautifully when roasted.

Olive Oil – A light drizzle helps roast the squash to tender perfection and adds a hint of richness.

Butter – Essential for building that velvety Alfredo base.

Garlic – Freshly minced garlic sautéed in butter gives the sauce deep flavor.

Heavy Cream – Brings creaminess and body to the Alfredo sauce.

Parmesan Cheese – The star of the Alfredo sauce—sharp, salty, and perfectly melty.

Mozzarella Cheese – Melted on top for that irresistible cheesy crust.

Salt and Pepper – To balance the richness and enhance all the flavors.

Chopped Parsley – Optional, but it adds a pop of freshness and color.

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How To Make the Roasted Spaghetti Squash With Alfredo Sauce and Cheese

Step 1: Roast the Spaghetti Squash

Cut the squash in half lengthwise and scoop out the seeds. Drizzle the flesh with olive oil and season with salt and pepper. Place cut side down on a baking sheet and roast at 400°F (200°C) for about 40 minutes or until fork-tender.

Step 2: Make the Alfredo Sauce

In a saucepan over medium heat, melt the butter and sauté garlic for 1 minute until fragrant. Stir in the heavy cream and simmer for 5 minutes. Add the Parmesan cheese and stir until smooth and creamy. Season with salt and pepper to taste.

Step 3: Shred the Squash

Once the squash is cool enough to handle, use a fork to scrape out the flesh into spaghetti-like strands. Leave the strands in the squash shell or transfer to a baking dish.

Step 4: Assemble

Mix the Alfredo sauce with the squash strands. Top with a generous sprinkle of mozzarella cheese.

Step 5: Bake

Return to the oven and bake for 10–15 minutes at 400°F until the cheese is golden and bubbly.

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Serving and Storing Roasted Spaghetti Squash With Alfredo Sauce and Cheese

This dish is best served fresh from the oven while the cheese is still warm and gooey. If you have leftovers, store them in an airtight container in the refrigerator for up to 3 days. Reheat in the oven or microwave until warmed through.

Avoid freezing, as the texture of spaghetti squash tends to become watery once thawed.

What to Serve With Roasted Spaghetti Squash With Alfredo Sauce and Cheese?

Garlic Bread

A crispy, buttery slice of garlic bread adds a satisfying crunch.

Roasted Broccoli

Keep it light and green with a side of seasoned roasted broccoli.

Grilled Chicken

Adds protein and makes this a more complete meal.

Caesar Salad

That creamy dressing pairs wonderfully with the rich Alfredo.

Balsamic Glazed Mushrooms

Earthy mushrooms complement the cheesy notes.

Tomato Basil Soup

A cozy, tangy soup balances the creaminess.

Lemon-Garlic Shrimp

Seafood lovers will enjoy the bright, zesty pairing.

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Want More Comfort Food Casserole Ideas?

If you love this squash Alfredo bake, you’ll want to check out these comforting favorites next:

• Creamy Ground Beef Alfredo Pasta for a heartier twist.
• Cheesy Spinach Stuffed Shells when you’re in the mood for a pasta bake.
• Chicken Cordon Bleu Casserole for a rich, meaty alternative.
• Longhorn Parmesan Chicken for crunchy-cheesy oven bliss.
• Taco Ranch Bites for a finger-food style comfort dish.

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And let me know in the comments how yours turned out. Did you add protein like grilled shrimp or keep it veggie-forward? Did you sneak in extra herbs?

I love hearing your spins on the recipe. Ask away if you have questions—let’s make cooking fun and flexible.

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