1. 1. Preheat the oven to 400°F (200°C).

2. 2. Cut the spaghetti squash in half lengthwise and remove the seeds.

3. 3. Place the squash halves on a baking sheet, cut side down, and bake for 40-45 minutes, or until tender.

4. 4. While the squash is baking, sauté the baby spinach in a pan until wilted.

5. 5. Once the squash is cooked, use a fork to scrape out the strands of squash into a bowl.

6. 6. Mix the sautéed spinach with the spaghetti squash strands and season with salt and pepper to taste.

7. 7. Spoon the mixture back into the squash shells.

8. 8. Return to the oven and bake for an additional 10 minutes.

9. 9. Serve hot and enjoy!