Spaghetti Squash Marinara - The Weary Chef

Ingredients

• 2 pounds spaghetti squash
• 16 ounces ground Italian sausage casings removed (I use turkey sausage.)
• 1/2 medium onion chopped
• 1 teaspoon Italian seasoning
• 2 cloves garlic minced or crushed
• 30 ounces petite diced tomatoes drained
• 1/3 cup grated parmesan cheese
• 8 ounces fresh mozzarella cheese cut into 1/2-inch cubes
• salt and pepper to taste
• crushed red pepper flakes (optional)