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A Spaghetti Squash Lasagna on a plate topped with fresh basil
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5 from 6 votes

Spaghetti Squash Lasagna

Spaghetti Squash Lasagna is a tasty, low-cal solution to your favorite Italian dinner. Each spaghetti squash half is loaded with marinara sauce, meat, and Italian cheeses!
Prep Time15 minutes
Cook Time1 hour 30 minutes
Total Time1 hour 45 minutes
Course: Dinner, Main Course
Cuisine: Italian
Keyword: Spaghetti
Servings: 4 servings
Calories: 601kcal
Author: Erica Walker

Ingredients

For the sauce:

Instructions

  • Preheat oven to 400º. Cut spaghetti squash in half lengthwise and scoop out seeds and membrane. Season lightly with salt and black pepper; bake for about 1 hour, or longer if needed on a baking sheet, cut side down.
    Four spaghetti squash halves face down on a baking sheet
  • In a small bowl combine the ricotta cheese, parmesan cheese, and parsley.
    Ricotta, parmesan, and spices mixed together in a bowl
  • In a large deep sauté pan, heat oil and add onions and garlic; sauté on medium-low for about 3 to 4 minutes, until soft.
    sautéed onions and garlic in a skillet
  • Add the sausage and cook, breaking it up into smaller pieces until browned and cooked through.
    crumbled Italian sausage cooked in a skillet
  • When cooked, add the crushed tomatoes and add salt and pepper to taste. Reduce heat to low and simmer for 20 to 30 minutes, adding fresh basil at the very end.
    tomato sauce with sausage in a skillet
  • When spaghetti squash is cooked, let it cool for about 10 minutes keeping the oven on.
    Half of a spaghetti squash cooked and seasoned with salt and pepper
  • When the spaghetti squash is cool enough to handle, use a fork to remove the flesh, which will come out in spaghetti-looking strands reserving the shells.
    Spaghetti squash noodles in a glass bowl
  • Drain the squash on a paper towel to soak up any excess liquid, then toss it with half of the sauce. Place the spaghetti squash back into the 4 shells and place them on a baking sheet.
    Spaghetti squash noodles mixed with red sauce in a glass bowl
  • Top each with the remaining sauce, 1 scoop of ricotta cheese mixture, and a little mozzarella cheese.
    Four spaghetti squash halves filled with spaghetti squash noodles, red sauce, sausage, ricotta mixture, and mozzarella cheese
  • Bake in the oven for 20 - 30 minutes or until everything is hot and the cheese is melted.
    Four Spaghetti Squash Lasagnas on a baking sheet

Notes

Time saving tip:  If you are short on time, you can brown the sausage and add a can of your favorite spaghetti sauce instead of making and simmering the sauce in the recipe.
Make it vegetarian by eliminating the sausage.  
If you prefer the microwave, cut the squash in half lengthwise, scoop out seeds and fibers and place it on a microwave-safe dish, and cover. Microwave for 8-9 minutes or until soft.

Nutrition

Calories: 601kcal | Carbohydrates: 13g | Protein: 32g | Fat: 47g | Saturated Fat: 20g | Cholesterol: 126mg | Sodium: 1287mg | Potassium: 671mg | Fiber: 2g | Sugar: 6g | Vitamin A: 1072IU | Vitamin C: 18mg | Calcium: 450mg | Iron: 3mg