Spaghetti Squash Lasagna Boats: The Ultimate Low-Carb Comfort Food Recipe
Craving the rich, comforting flavors of lasagna but looking for a lighter, low-carb alternative? Look no further! Spaghetti Squash Lasagna Boats are your perfect answer. This ingenious dish beautifully transforms spaghetti squash into a delectable vessel for all your favorite lasagna fillings: savory bolognese sauce, creamy ricotta, and gooey melted mozzarella cheese. Whether you prefer a quick weeknight meal or a slow-cooked, deeply flavored sauce, this recipe offers versatility and incredible taste that will satisfy your lasagna-loving heart without the guilt.
These Spaghetti Squash Lasagna Boats have truly become a staple in my kitchen, bringing immense joy with every single bite. It’s a revelation how simply swapping traditional pasta for tender spaghetti squash can create such a satisfying and healthy meal.

Why Spaghetti Squash Lasagna Boats Are a Game-Changer
Imagine all the deliciousness of classic lasagna – the rich meat sauce, the creamy ricotta, the melty mozzarella – but in a healthier, low-carb package. That’s exactly what you get with these spaghetti squash boats. Instead of pasta sheets, the tender, noodle-like strands of spaghetti squash form the base, providing a delightful texture and absorbing all the wonderful flavors of the sauce. This makes it an ideal option for anyone following a low-carb, keto-friendly, or gluten-free diet, or simply looking to incorporate more vegetables into their meals without sacrificing taste.
The individual “boat” presentation is not only charming but also perfect for portion control, making it an excellent choice for meal prep or entertaining. Each boat is a complete, satisfying meal, packed with protein, healthy fats, and vibrant vegetables. It’s comfort food redefined, offering warmth and indulgence without the heavy feeling often associated with traditional lasagna.

Mastering the Spaghetti Squash: Your Low-Carb “Pasta” Base
The star of this dish is, of course, the spaghetti squash itself. If you’re new to this versatile vegetable, you’re in for a treat! Spaghetti squash gets its name from the pasta-like strands that form when its cooked flesh is scraped with a fork. It has a mild, slightly sweet flavor that makes it a perfect canvas for robust sauces like bolognese.
How to Select and Roast Spaghetti Squash
Choosing a good spaghetti squash is key. Look for a squash that is firm, heavy for its size, and has no soft spots or blemishes. Its color should be uniformly yellow or orange. Avoid any squash that looks dull or has a green tint, as this indicates it’s not fully ripe.
Roasting the squash is the best way to prepare it for these boats. It brings out its natural sweetness and ensures a tender, fork-apart texture. Here’s a quick overview of the roasting process, which you can find in more detail in our how to cook spaghetti squash recipe:
- **Preparation:** Carefully cut each spaghetti squash in half lengthwise. A sharp, sturdy knife is essential here. Scoop out the seeds and stringy bits from the center.
- **Seasoning:** Drizzle the cut sides with a little olive oil, and season lightly with salt and pepper. You can also add a pinch of garlic powder for extra flavor.
- **Roasting:** Place the squash halves cut-side down on a baking sheet. Roast in a preheated oven (usually around 400°F or 200°C) until fork-tender. The exact time will vary based on the size of your squash, but typically ranges from 40 to 60 minutes.
- **Shredding:** Once cooked, let the squash cool slightly. Then, using a fork, gently scrape the flesh from the sides towards the center to create those wonderful spaghetti-like strands. These strands will form the base of your lasagna boats.
Crafting the Perfect Bolognese: Quick or Slow-Cooked Goodness
The heart of any great lasagna is its sauce, and these Spaghetti Squash Lasagna Boats are no exception. I’m a firm believer that when you make bolognese, you make it with passion – almost as if you’re preparing for a feast! This recipe offers the flexibility of using either a quick homemade bolognese or a rich, slow-cooked version.
The Quick Bolognese Method
Our provided recipe includes instructions for a fantastic quick bolognese sauce that comes together in under an hour. It starts with sautéing fragrant garlic, then browning lean ground beef (or chicken/turkey for a lighter option). The key to its robust flavor lies in quality ingredients like Passata (or your favorite marinara/crushed tomatoes), concentrated tomato paste, and a blend of classic Italian herbs like parsley, oregano, and basil. A touch of beef bullion adds depth, and a pinch of sugar can help balance the acidity of the tomatoes. Simmering for 20-30 minutes allows the flavors to meld beautifully, creating a thick, savory sauce that clings perfectly to the spaghetti squash strands.
Embracing the Slow Cooker for Deep Flavor
If you have more time, or if you’re like me and often have a generous batch of bolognese simmering, you can use a slow cooker version. A slow-cooked bolognese develops an incredible depth of flavor that is simply unmatched. You’ll need about 8 cups of a thick, rich sauce for this recipe. My Slow Cooker Bolognese recipe is ideal, or for a chunkier, shredded beef experience, this Slow Cooker Beef Ragu works wonderfully. Whichever method you choose, ensuring your sauce is thick and not watery is paramount. Just like traditional lasagna, a rich, concentrated sauce makes all the difference in every bite, preventing a soggy end product and delivering maximum flavor. Think of it like a good stew or a batch of Cocktail Meatballs where a sticky, flavorful glaze elevates the entire dish; a thick sauce means bold, satisfying flavor.

Assembling Your Delicious Lasagna Boats
Once your spaghetti squash is roasted and your bolognese sauce is ready, assembly is quick and fun! This is where the “boat” concept truly comes to life, making for an attractive and easy-to-serve meal.
- **Scrape the Squash:** After roasting, use a fork to gently scrape the spaghetti squash flesh, creating those wonderful noodle-like strands directly within the squash shell. Make sure to leave a sturdy border so your “boat” maintains its shape.
- **Layer the Bolognese:** Fill each spaghetti squash half generously with about 2 cups of your rich bolognese sauce. Spread it evenly, ensuring every strand of squash is coated.
- **Add Creamy Ricotta:** In a small bowl, mix your ricotta cheese with a touch of grated Parmesan cheese for extra flavor. Spoon 2-3 tablespoons of this creamy mixture over the bolognese in each boat. The ricotta provides a delightful tangy contrast and a luscious texture, mimicking the classic lasagna layers.
- **Top with Mozzarella:** Finally, sprinkle each boat with a generous quarter cup of shredded mozzarella cheese. This will melt into a golden, bubbly crust, creating that irresistible cheesy finish we all adore in lasagna.
Baking to Golden Perfection and Serving
The final step is to return your assembled spaghetti squash lasagna boats to the oven for a quick broil (or grill, depending on your oven settings). This crucial step allows the cheeses to melt into a bubbly, golden-brown perfection, adding another layer of texture and flavor.
Place the boats back into the oven, preheated to medium broil. Keep a close eye on them, as broilers can work quickly! About 10 minutes should be enough, or until the mozzarella is beautifully melted and lightly golden. The aroma filling your kitchen at this point will be absolutely divine.
Once out of the oven, a final drizzle of good quality olive oil and a sprinkle of fresh, chopped parsley add a burst of freshness and elevate the presentation. Serve these boats hot, right out of the squash shell. They are hearty enough to be a meal on their own, but also pair wonderfully with a simple green salad for a complete, wholesome dinner.

Tips for Success & Delicious Variations
To make your Spaghetti Squash Lasagna Boats experience even better, consider these tips and variations:
- **Make-Ahead Magic:** The bolognese sauce can be prepared several days in advance and stored in the refrigerator, or even frozen for longer periods. This makes assembly on a busy weeknight incredibly fast. You can also roast the spaghetti squash ahead of time.
- **Freezer Friendly:** Once assembled and baked, individual lasagna boats can be frozen. Allow them to cool completely, then wrap tightly in plastic wrap and aluminum foil. Reheat in the oven from frozen until warmed through and bubbly.
- **Vegetarian Adaptation:** For a delightful vegetarian version, simply swap the ground meat in the bolognese for sautéed mushrooms, lentils, or a mixture of finely chopped vegetables like carrots, celery, and zucchini.
- **Cheese, Please!** Feel free to experiment with different cheeses. A sprinkle of provolone or a sharp cheddar could add another layer of flavor. A touch of fresh basil leaves torn over the top before serving is also a wonderful addition.
- **Spice It Up:** If you enjoy a bit of heat, add a pinch of red pepper flakes to your bolognese sauce.
- **Serving Suggestions:** While satisfying on their own, these boats pair beautifully with a crisp green salad tossed with a light vinaigrette. For those not strictly adhering to low-carb, a slice of crusty garlic bread would also be a fantastic accompaniment.

Frequently Asked Questions (FAQs)
- How do I prevent my spaghetti squash from being watery?
- After roasting and scraping the strands, you can gently blot any excess moisture with a paper towel before adding the sauce. Also, ensure your bolognese sauce is thick and not too thin, as this contributes significantly to the overall moisture content.
- Can I prepare spaghetti squash lasagna boats in advance?
- Absolutely! You can roast the squash and prepare the bolognese sauce a day or two ahead. Store them separately in the refrigerator. Assemble the boats just before baking for the best results, or assemble them fully and bake later. If baking later, you might add 10-15 minutes to the baking time to ensure they heat through properly.
- Is this dish suitable for meal prepping?
- Yes, it’s excellent for meal prepping! Cooked and assembled boats can be stored in airtight containers in the refrigerator for up to 3-4 days. Reheat in the microwave or oven until warm and bubbly.
- Can I use other types of ground meat?
- Definitely! While lean ground beef is traditional, ground chicken or ground turkey are fantastic alternatives for a lighter version of the bolognese. Feel free to use what you prefer or have on hand.
- What if I don’t have Passata?
- Passata is a smooth, strained tomato puree. If you can’t find it, you can use good quality canned crushed tomatoes or a rich marinara sauce. Just make sure it’s not too watery.
Spaghetti Squash Lasagna Boats offer a brilliant way to enjoy a beloved classic in a new, healthier light. They are incredibly flavorful, wonderfully satisfying, and surprisingly easy to make. Whether you’re a seasoned low-carb enthusiast or simply looking to try something different, this recipe is sure to become a cherished addition to your culinary repertoire. Gather your ingredients, prepare your squash, and get ready to indulge in a truly delightful meal!

Pin
Spaghetti Squash Lasagna Boats
Ingredients
- 4 spaghetti squashes halves pre-roasted
- 8 cups bolognese sauce for slow cooker bolognese, use this recipe
For A Quick Bolognese Sauce:
- 1 tablespoons olive oil
- 3 cloves garlic minced
- 1 pound lean ground minced beef or chicken or turkey
- 14 ounce Passata marinara sauce, U.S tomato sauce or crushed tomatoes
- 2 tablespoons tomato paste
- 1 beef bullion cube crushed
- 1 pinch sugar if needed
- 2 tablespoons fresh parsley chopped, divided, plus a little extra, to serve
- 1 teaspoon dried oregano
- 1 teaspoon dried basil
- 1 pinch salt to taste
- 1 pinch pepper
- 1 cup ricotta cheese part skim
- 1/3 cup parmesan cheese fresh grated
- 1 cup shredded mozzarella cheese
Instructions
-
Prepare and roast spaghetti squash
refer to the how to cook spaghetti squash recipe. While squash is roasting, prepare sauce.
For a Slow Cooker Sauce, use this recipe.
For A Quick Sauce:
-
Heat the olive oil in a skillet or pan over medium heat. Sauté the garlic until fragrant (about 1 minute). Add the beef and cook, stirring frequently while breaking up the meat until fully cooked. Pour in the Passata (or marinara sauce, tomato sauce or crushed tomatoes), tomato paste, crushed bullion cube, pinch of sugar, 1 tablespoon parsley and herbs. Season with salt and pepper, to taste. Reduce heat; partially cover with lid and simmer for 20-30 minutes.
-
Mix the ricotta cheese together with the parmesan. Set aside.
-
When spaghetti squash is done, scrape the flesh with a fork across the squash to separate the strands from the squash. Fill each boat with about 2 cups of meat sauce. Top each with 2-3 tablespoons of ricotta cheese and 1/4 cup mozzarella cheese.
-
Return the boats back into the oven to broil or grill them on medium heat for 10 minutes, or until the cheese is golden and malted.
-
Drizzle with olive oil and top with extra parsley to serve.
Notes
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
