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Cheesy spaghetti squash pizza casserole served in a baking dish

Cheesy Spaghetti Squash Pizza Casserole

A warm and cheesy spaghetti squash pizza casserole that's healthy and delicious, perfect for family dinners.
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Prep Time 15 minutes
Cook Time 40 minutes
Total Time 55 minutes
Servings: 6 servings
Course: Dinner, Main Course
Cuisine: American, Italian
Calories: 280
Ingredients Method Notes

Ingredients
  

For the Casserole Base
  • 1 medium spaghetti squash (around 3-4 pounds) Choose a firm, heavy squash for the best results.
  • 2 tablespoons olive oil
  • to taste Salt
  • to taste Pepper
For the Pizza Filling
  • 1 cup marinara sauce (homemade or store-bought) You can use pre-made marinara sauce to save time.
  • 1 cup mozzarella cheese, shredded
  • 1/2 cup pepperoni slices (or turkey pepperoni for a lighter option)
  • 1/2 cup bell pepper, diced (any color you prefer)
  • 1/4 cup onion, chopped
  • 1 teaspoon Italian seasoning
  • 1/2 teaspoon garlic powder
For the Topping
  • 1/2 cup mozzarella cheese, shredded
  • Fresh basil, for garnish (optional)

Method
 

Preparation
  1. Preheat your oven to 400°F (200°C).
  2. Carefully cut the spaghetti squash in half lengthwise and scoop out the seeds. Drizzle the insides with olive oil, and sprinkle with salt and pepper.
  3. Place the squash halves, cut-side down, on a baking sheet lined with parchment paper. Roast in the preheated oven for about 30-35 minutes, or until tender.
Mixing Filling
  1. In a mixing bowl, combine your marinara sauce, mozzarella cheese, pepperoni, bell pepper, onion, Italian seasoning, and garlic powder. Stir until evenly mixed.
  2. Once the squash is cooked, remove it from the oven and let it cool slightly. Using a fork, scrape the flesh into strands and transfer them to the bowl with the pizza filling mixture.
  3. Mix the spaghetti squash with the filling until well coated.
  4. Transfer the combined mixture back into the empty squash halves or into a greased casserole dish.
  5. Top with additional mozzarella cheese.
Baking
  1. Bake at 400°F (200°C) for another 10-15 minutes, until the cheese is bubbly and golden.
  2. Carefully remove the casserole from the oven and let it cool slightly before garnishing with fresh basil.
  3. Serve warm and enjoy!

Notes

The casserole can be stored in the refrigerator for up to 3 days. Reheat in the oven for best results. Feel free to substitute with any of your favorite pizza toppings. For vegetarian, omit the pepperoni and replace mozzarella with dairy-free cheese if desired.