Roasted Garlic Spaghetti Squash

Featured in: Cozy Weeknight Dinners

Spaghetti squash shells are filled with a luscious blend of roasted garlic, creamy ricotta, parmesan, mozzarella, sautéed spinach, and zucchini. Saucy marinara ties everything together before baking until golden and bubbly. These boats provide a wholesome, gluten-free twist on classic Italian flavors, yielding a satisfying, lighter meal. The process involves simple roasting, easy veggie sautéing, and assembly, delivering savory depth and aromatic freshness with a comforting cheesy top, finished with basil. Perfect for those seeking robust flavor without pasta, this dish pleases vegetarian and gluten-free diets alike, and comes together with everyday kitchen tools.

Updated on Wed, 22 Oct 2025 15:07:33 GMT
Savory Roasted Garlic Spaghetti Squash Lasagna Boats filled with ricotta, spinach and marinara. Pin
Savory Roasted Garlic Spaghetti Squash Lasagna Boats filled with ricotta, spinach and marinara. | crumbkiss.com

This comforting roasted garlic spaghetti squash lasagna boats recipe gives you all the cozy Italian flavors you crave with a light and wholesome spin The roasted squash forms the perfect vessel for creamy ricotta sautéed vegetables and rich marinara all finished with a bubbly golden cheese topping that was an instant family favorite from our very first bite

Roasting garlic brings a mellow comforting sweetness that blends so perfectly with the squash and melty cheese that I find myself making a double batch every fall when spaghetti squash is at its best

Ingredients

  • Spaghetti squash: Medium size picks are best for tender strands and even roasting look for squash with golden unblemished skins
  • Head of garlic: Roasting softens and sweetens every clove making sure you get that signature mellow flavor
  • Baby spinach: Fresh and chopped because it wilts evenly in the filling and adds a nutritional boost
  • Zucchini: Diced small so it softens quickly and adds a little sweetness and crunch
  • Ricotta cheese: Creamy fresh ricotta is key for richness research brands that list milk and whey as the first ingredients
  • Mozzarella cheese: Shredded for easy melting pick a whole milk mozzarella for best pull and flavor
  • Grated Parmesan cheese: Adds sharpness and ties everything together aged Parm is preferred if possible
  • Large egg: Binds the filling and helps it puff up just a bit during baking look for cage free or local eggs for freshness
  • Marinara sauce: Choose your favorite store bought or homemade variety and look for minimal added sugars
  • Olive oil: Extra virgin gives you a fragrant taste drizzle any brand with a peppery finish
  • Dried Italian herbs: A blend boosts classic flavor test a pinch first as some blends are saltier than others
  • Red pepper flakes: Optional but adds a subtle heat
  • Salt and black pepper: Use freshly ground pepper and sea salt when possible
  • Fresh basil: For garnish bright flavor and irresistible aroma snip just before serving for best color

Instructions

Preheat and Prepare the Squash:
Set your oven to 400 degrees Fahrenheit and line a sheet pan with parchment paper to prevent sticking
Roast the Squash and Garlic:
Drizzle olive oil over the cut sides of your halved squash and season well with salt and pepper Place cut side down on your baking sheet Slice the top off the garlic head just enough to expose the cloves Drizzle garlic with more olive oil and wrap tightly in foil Place garlic next to squash and roast both for about 40 minutes until squash is fork tender and garlic is deeply golden and soft
Mix the Ricotta Filling:
Reduce oven temp to 375 degrees Squeeze cooled garlic cloves from their skins straight into a bowl Use a fork to mash completely Add ricotta egg Parmesan Italian herbs red pepper flakes and a pinch of salt and pepper Mix until creamy and smooth
Prepare the Squash Boats:
Using a fork gently scrape inside of each squash to create long tender strands keeping the outer shells intact as your boats
Sauté Vegetables:
Place a skillet over medium heat and add a light swirl of olive oil Sauté chopped zucchini and spinach for a couple of minutes until wilted and softened but still vibrant Season with a dash of salt and pepper
Combine and Fill:
Stir sautéed vegetables and half your marinara into the ricotta mixture Blend thoroughly so every bite is loaded with flavor Spoon this mixture into your prepared squash boats
Top and Bake:
Spoon on the rest of the marinara over each filled boat generously sprinkle with shredded mozzarella Cheese will bubble and become golden as it bakes
Final Bake:
Place your filled boats back on the baking sheet Bake at 375 degrees for fifteen to twenty minutes until cheese is beautifully melted and edges are bubbly
Garnish and Serve:
Sprinkle freshly chopped basil over each boat right before serving This adds aroma and brightness that takes them over the top
Golden brown Roasted Garlic Spaghetti Squash Lasagna Boats with melted mozzarella, fresh basil garnish. Pin
Golden brown Roasted Garlic Spaghetti Squash Lasagna Boats with melted mozzarella, fresh basil garnish. | crumbkiss.com

I will never forget the first time my son picked out the little strands of squash with cheesy ricotta on his fork and said it tasted just like real lasagna The roasted garlic makes this version extra cozy and I now always buy two heads just to eat the rest on toast

Storage Tips

Store leftovers in an airtight container in the fridge for up to four days Reheat uncovered in the oven at 350 degrees to keep the cheese crisp I love packing these for lunch the next day because the flavors get even better and the squash boats stay tender without getting watery

Ingredient Substitutions

Use dairy free ricotta and mozzarella along with a flax egg for a vegan swap If you do not have fresh spinach sub in frozen just thaw and squeeze well before adding Try swapping in kale or using a different blend of Italian cheese depending on what you have

Serving Suggestions

Serve with a simple salad dressed with lemon and olive oil for a balanced meal Pair with a glass of crisp Pinot Grigio or your favorite dry red wine These boats are substantial but also make a lovely side if you are having a big family dinner

Cultural and Seasonal Context

Inspired by classic Italian comfort food traditions this recipe reinvents lasagna by embracing the versatility of spaghetti squash There is something magical about sneaking extra vegetables into a beloved dish and seeing everyone at the table surprised by how good healthy can taste In fall when squash are everywhere I often bake several boats and freeze them for busy weeknights

Seasonal Adaptations

Spring squash cooks a bit faster so start checking at thirty minutes Add fresh peas or asparagus in springtime for extra green color Swap in roasted mushrooms or peppers in winter for added heartiness

Creamy ricotta and vegetable filling overflows warmly Roasted Garlic Spaghetti Squash Lasagna Boats. Pin
Creamy ricotta and vegetable filling overflows warmly Roasted Garlic Spaghetti Squash Lasagna Boats. | crumbkiss.com

Serve with fresh basil for a fragrant finish and enjoy the satisfying layers of cozy vegetables and creamy cheese in every bite

Recipe FAQ

How do I easily roast garlic for this dish?

Simply slice the top off a garlic head, drizzle with olive oil, wrap in foil, and roast alongside the squash until soft.

Can I make this dish vegan?

Use plant-based ricotta and mozzarella alternatives and skip the egg. The texture will remain satisfying and creamy.

What are some protein boosters for this meal?

Include cooked lentils or sautéed mushrooms in the filling for extra plant-based protein and heartiness.

What wines pair well with this squash lasagna?

A light red like Chianti or a crisp white such as Pinot Grigio complements the savory, herby flavors beautifully.

How do I prevent watery squash boats?

After roasting, let squash cool slightly and drain excess liquid before filling, ensuring a firmer texture after baking.

Is this suitable for gluten-free diets?

Yes, spaghetti squash replaces traditional noodles and most cheeses and marinara sauces are naturally gluten-free.

Roasted Garlic Spaghetti Squash

Sweet roasted garlic, tender squash, marinara, and cheeses baked for a flavorful, low-carb Italian-inspired meal.

Prep duration
20 min
Cook duration
50 min
Complete duration
70 min


Complexity Medium

Heritage Italian-American

Output 4 Portions

Dietary guidelines Vegetarian, No gluten, Low-Carb

Components

Vegetables

01 2 medium spaghetti squash, halved and seeds removed
02 1 head garlic
03 2 cups baby spinach, chopped
04 1 small zucchini, diced

Dairy

01 1 cup ricotta cheese
02 1 cup shredded mozzarella cheese
03 1/4 cup grated Parmesan cheese
04 1 large egg

Sauces & Pantry

01 2 cups marinara sauce
02 2 tablespoons olive oil
03 1 teaspoon dried Italian herbs
04 1/2 teaspoon red pepper flakes (optional)
05 Salt and black pepper, to taste

Garnish

01 2 tablespoons fresh basil, chopped

Method

Phase 01

Preparation of Oven and Vegetables: Preheat the oven to 400°F. Line a baking sheet with parchment paper. Drizzle the cut sides of the spaghetti squash with 1 tablespoon olive oil and season with salt and black pepper. Arrange the squash halves cut side down on the baking sheet.

Phase 02

Roasting Garlic: Slice the tip off the garlic head to expose the cloves. Drizzle with 1 tablespoon olive oil, wrap tightly in aluminum foil, and place onto the baking sheet alongside the squash.

Phase 03

Roasting Squash and Garlic: Transfer squash and garlic to the oven; roast for 35 to 40 minutes until squash is tender and easily separated into strands. Remove both from the oven and let cool slightly.

Phase 04

Preparation of Cheese Filling: Lower oven temperature to 375°F. Squeeze roasted garlic cloves into a mixing bowl and mash finely. Add ricotta cheese, egg, grated Parmesan, dried Italian herbs, red pepper flakes, and a pinch of salt and black pepper, then blend until smooth.

Phase 05

Preparing Squash Boats: Using a fork, gently scrape the spaghetti squash flesh into strands, keeping the outer shells undamaged for stuffing.

Phase 06

Sautéing Vegetables: Heat a skillet on medium; add zucchini and baby spinach. Sauté for 2 to 3 minutes until softened, then season lightly with salt and black pepper.

Phase 07

Combining Filling: Fold the sautéed vegetables and half of the marinara sauce into the ricotta mixture; stir until well combined.

Phase 08

Stuffing Boats and Topping: Spoon the ricotta-vegetable mixture into the squash shells. Pour remaining marinara sauce over each and sprinkle with shredded mozzarella cheese.

Phase 09

Baking: Arrange the filled squash boats on the baking sheet. Return to oven and bake for 15 to 20 minutes until the cheese is thoroughly melted and begins to bubble.

Phase 10

Finishing Touch: Remove from oven and garnish each boat with chopped fresh basil before serving.

Necessary tools

  • Baking sheet
  • Parchment paper
  • Chef’s knife
  • Mixing bowls
  • Skillet
  • Fork
  • Aluminum foil

Allergy details

Review each component for potential allergens and consult healthcare providers if you're uncertain.
  • Contains dairy and egg products.
  • Confirm marinara sauce and cheeses are gluten-free for sensitive individuals.
  • Carefully inspect labels for hidden allergens.

Nutritional breakdown (per portion)

These values are approximate guides only and shouldn't replace professional medical guidance.
  • Energy: 340
  • Fat: 15 g
  • Carbohydrates: 34 g
  • Protein: 17 g