Yield: Serves 6

Vegetarian Baked Spaghetti Squash Casserole

Baked spaghetti squash casserole made with tomato sauce, cheese, and veggies is a tasty and satisfying vegetarian low-carb meal.

Prep Time 5 minutes
Cook Time 1 hour 5 minutes
Total Time 5 minutes

Ingredients

  • 1 medium-sized spaghetti squash 
  • 2 tablespoons extra virgin olive oil, divided 
  • 1 small yellow onion
  • 3 cloves garlic, minced 
  • 1 red bell pepper, diced
  • 1 cup sliced crimini mushrooms 
  • 1 teaspoon oregano
  • 1 pinch red pepper flakes
  • 1 (26 ounce) box chopped tomatoes, such as Pomi
  • 1 tablespoon tomato paste
  • 1/4 cup fresh basil, chopped 
  • 8 ounces fresh mozzarella cheese packed in water, drained and cubed 
  • 1/4 cup grated Parmesan cheese 

Instructions

  1. Preheat the oven to 400 degrees F. 
  2. Carefully cut the spaghetti squash in half lengthwise (this can be the hardest part). Brush or drizzle with 1 tablespoon olive oil. Season lightly with salt and pepper. Place cut side down on a baking sheet and roast for 45 minutes, or until tender. 
  3. Meanwhile, saute the onion in a large saucepan over medium-high heat with another tablespoon of olive oil until translucent. Add the garlic, bell pepper, mushrooms, oregano, and red pepper, and continue to saute until the vegetables have softened. Add the tomatoes and tomato paste, and simmer until slightly thickened, about 5 minutes. Stir in basil. Season sauce to taste with salt and pepper. 
  4. Use a fork to scratch "spaghetti noodles" out of the squash skin. Transfer "noodles" to a large casserole dish. Pour sauce over the top and stir in the mozzarella. Sprinkle Parmesan over the top and bake at 400 degrees for 20 minutes, until bubbly.  

Notes

Variations

  • To make this more like lasagna, add dollops of ricotta. I like Kite Hill vegan ricotta or homemade vegan ricotta best. 
  • For a meaty bake, add sliced or crumbled Italian cooked sausage.
  • Add sauteed sliced mushrooms, zucchini, eggplant, or any other favorite veggies. 
  • Add kalamata olives, capers, and red pepper flakes for a take on puttanesca. 
  • For a vegan bake, be sure to use only vegan cheeses.

Nutrition Information:

Yield:

6

Serving Size:

1 bowl
Amount Per Serving: Calories: 236Total Fat: 15gSaturated Fat: 6gTrans Fat: 0gUnsaturated Fat: 7gCholesterol: 33mgSodium: 347mgCarbohydrates: 17gFiber: 3gSugar: 7gProtein: 12g

Nutrition information is automatically calculated by Nutritionix. I am not a nutritionist and cannot guarantee accuracy. If your health depends on nutrition information, please calculate again with your favorite calculator.

 

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