Step 1

Preheat oven to 400 degrees.

Step 2

Slice spaghetti squash in half length-wise. Scoop out seeds and place cut side down in a glass baking dish. Pour 1/2 cup water into dish and bake for about 30-35 minutes. With a fork gently shred the pulp from the inside of the squash and set aside.Reduce oven heat to 375 degrees.

Step 3

On top of stove, heat olive oil in a large skillet over medium heat. Add the onion and red bell pepper. Sauté about 5 minutes, until tender. Add the garlic and cook until fragrant, about 1 minute.

Step 4

Add the spinach to the skillet and season with the nutmeg, salt, and pepper. Cook and stir until the spinach is wilted.

Step 5

Gently stir in the cream cheese until melted. Add the spaghetti squash and stir until combined.

Step 6

Pour the mixture into a casserole dish that is lightly coated with cooking spray. Top with the mozzarella and parmesan cheese. Bake at 375 degrees for 30 minutes, or until bubbly and cheese is lightly browned.