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Spaghetti Squash Parmesan Recipe

Spaghetti Squash Parmesan Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.4 from 67 reviews
  • Author: Kimberly
  • Prep Time: 15 minutes
  • Cook Time: 55 minutes
  • Total Time: 1 hour 10 minutes
  • Yield: 6 servings 1x
  • Category: Main-course
  • Method: Baking
  • Cuisine: Italian-American
  • Diet: Vegetarian

Description

Spaghetti Squash Parmesan is a comforting, lightened-up twist on classic Chicken Parmesan, using tender strands of roasted spaghetti squash as the base. It’s layered with rich marinara sauce, melty mozzarella, and a crisped Parmesan breadcrumb topping—making it a satisfying veggie-forward option that’s both gluten-free and crowd-pleasing.


Ingredients

Units Scale

For the Spaghetti Squash

  • 1 medium spaghetti squash (about 3 pounds)
  • 1 tablespoon olive oil
  • 1/4 teaspoon salt
  • 1/4 teaspoon black pepper

For the Sauce & Cheese Layers

  • 2 cups marinara sauce (homemade or store-bought)
  • 1 1/2 cups shredded mozzarella cheese, divided
  • 1/2 cup freshly grated Parmesan cheese, divided

For the Topping

  • 1/2 cup panko breadcrumbs (gluten-free if needed)
  • 2 tablespoons olive oil
  • 1 teaspoon dried Italian herb seasoning
  • 1 tablespoon chopped fresh basil (optional, for serving)

Instructions

  1. Prepare and Roast the Spaghetti Squash Preheat your oven to 400°F (200°C). Halve the spaghetti squash lengthwise and scoop out the seeds. Drizzle the cut sides with olive oil, sprinkle with salt and pepper, and place cut side down on a baking sheet lined with parchment. Roast for 35-40 minutes, until the flesh is tender and easily shredded with a fork.
  2. Shred the Squash Remove the squash from the oven and let cool slightly. Using a fork, scrape the inside to create long spaghetti-like strands. Lightly season the squash strands with a touch more salt and black pepper if desired.
  3. Layer the Ingredients Reduce oven temperature to 375°F (190°C). In a baking dish (about 9×13-inch), spread half the marinara sauce. Add the shredded squash in an even layer, then top with the remaining sauce. Sprinkle with 1 cup mozzarella and 1/4 cup Parmesan cheese.
  4. Add the Breadcrumb Topping In a small bowl, mix together the panko, olive oil, Italian herbs, and the remaining Parmesan. Sprinkle this mixture over the cheese layer, then top with the remaining 1/2 cup mozzarella.
  5. Bake the Casserole Bake uncovered for 20-25 minutes, until bubbly and the top is golden brown. If more browning is desired, broil for 1-2 minutes, but watch closely to avoid burning.
  6. Garnish and Serve Remove from oven and let it cool for 5 minutes. Sprinkle with fresh basil if using and serve warm, ideally as a main course or hearty side.

Notes

  • If your spaghetti squash is particularly watery, blot excess moisture with paper towels after shredding to prevent a watery bake.
  • Switch up the cheese: try provolone, fontina, or smoked mozzarella for a different twist.
  • For extra protein, add cooked shredded chicken or sausage between the squash and sauce layers.
  • This recipe can be made ahead—assemble the casserole, cover, and refrigerate for up to 24 hours before baking.

Nutrition

  • Serving Size: about 1/6 casserole
  • Calories: 250
  • Sugar: 8g
  • Sodium: 540mg
  • Fat: 12g
  • Saturated Fat: 5g
  • Unsaturated Fat: 6g
  • Trans Fat: 0g
  • Carbohydrates: 26g
  • Fiber: 4g
  • Protein: 11g
  • Cholesterol: 20mg