Indulge in the guilt-free pleasure of our Keto Spaghetti Squash Lasagna – a culinary creation that seamlessly combines health and flavor in a single, savory dish. This low-carb alternative to traditional lasagna introduces the delightful crunch of spaghetti squash, perfectly complemented by layers of seasoned ground beef, rich marinara sauce, and a luscious blend of cheeses. The result? A comforting, keto-friendly meal that caters to your taste buds and dietary goals.

Low carb Keto Spaghetti Squash Lasagna. Easy & delicious at the same time! This is healthy comfort food in one meal.


Meat Chopper – Makes breaking up any type of ground meat a breeze. In this spaghetti squash boat recipe, it’s the only tool I use for ground beef.
Baking Pan – For family meals like this, a sturdy quarter sheet pan is so useful. On the pan, two spaghetti squash halves fit perfectly.
Marinara Sauce – If you’re in a pinch and for your lasagna boats, don’t have time to make the sauce, then try this ready-made version. The flavor and texture is low carb to boot, and it’s very nice!

PREP: 20 minutes
COOK: 35 minutes
TOTAL: 55 minutes



  • 1 medium Spaghetti squash
  • 4 tsp Olive oil (divided)
  • Sea salt


  • 1 tbsp Olive oil (divided)
  • 2 cloves Garlic
  • 1/2 lb Ground beef
  • 1/2 tsp Sea salt
  • 1/8 tsp Black pepper
  • 1/2 cup Marinara sauce
  • 1 tsp Italian seasoning


  • (whole milk or 2%) 2/3 cup Ricotta cheese
  • 1/3 cup grated parmesan cheese
  • 1 tbsp Olive oil
  • Sea salt
  • (shredded, divided) 2/3 cup Mozzarella cheese



According to the instructions here, cook the spaghetti squash at 425 degrees F in the oven.


  1. Meanwhile, in a large pan, heat the remaining tablespoon of oil over medium-high heat. Add the garlic and for about THIRTY seconds, cook, until it gets fragrant. Add the ground beef. With black pepper and sea salt, season. Breaking apart the meat with a spoon/spatula, cook until browned (about TEN minutes).
  2. Stir in Italian seasoning and marinara sauce. To a gentle simmer, reduce heat. For about TEN minutes, simmer. Before the squash is ready, if it’s done, cover to keep warm.


Meanwhile, in a large bowl, stir together a tablespoon of olive oil, parmesan cheese, and ricotta cheese. Put it aside.


  1. Take it out of the oven, when the spaghetti squash is done cooking, but at 425 degrees F, leave it on.
  2. Cut the squash in (if you cooked it whole and it is not cut yet)half lengthwise. Onto the baking pan, place open side up and to release strands, use a fork.
  3. Into the large bowl, with the ricotta and parmesan cheeses, transfer the spaghetti squash strands. Mix together. Season with sea salt.
  4. Stuff the spaghetti squash mixture back into the baking pan into the empty shells. Top with the beef marinara mixture. On top, sprinkle shredded mozzarella. (I usually keep it simple with just one of each layer, but if desired, you can create several thinner layers of each mixture.)
  5. For about TEN minutes, return the lasagna spaghetti squash boats to the oven, until the cheese melts.

Nutrition Facts

Amount per serving.
Serving size in recipe notes above.
Total Carbs10g
Net Carbs8g

Useful Information:

Choosing the Perfect Spaghetti Squash:

Look for a medium-sized squash with a vibrant color and firm texture. A heavier squash indicates ripeness and ensures a satisfying bite.

Mozzarella Melting Tips:

For the perfect melted mozzarella topping, allow the lasagna spaghetti squash boats to remain in the oven until the cheese achieves a golden-brown hue and irresistible gooiness.

Customization Options:

Feel free to experiment with additional layers or variations in seasoning to personalize your Keto Spaghetti Squash Lasagna. Consider adding fresh herbs or a sprinkle of red pepper flakes for an extra kick.


Elevate your low-carb dining experience with the Keto Spaghetti Squash Lasagna – a culinary masterpiece that caters to both your taste buds and health-conscious goals. Whether you’re following a ketogenic lifestyle or simply seeking a flavorful alternative to traditional lasagna, this dish promises a symphony of textures and tastes in every bite. Enjoy the satisfaction of a hearty, comforting meal without compromising on your dietary preferences. Indulge intelligently with our Keto Spaghetti Squash Lasagna, where health meets culinary delight!