Preheat oven to 400. Line a cookie sheet with parchment paper and grease with avocado oil.
Cut squash in half. Start by digging the knife into the center of the squash (lengthwise) and cut towards the base. This makes it easier to cut all the way around. You should be able to cut it without zapping it in the microwave, but if you are having some trouble go ahead and zap it for a minute.
Once you have cut the squash down the middle (lengthwise), scoop out of seeds and pulp using a spoon. Feel free to save these to roast for salads too!
Place the squash with the center facing up on the cookie sheet. Spray avocado oil generously on top of the squash. Season with sea salt and cinnamon.
Flip the squash over so the skin is facing up. Poke holes throughout the pack of the skin using a knife or fork. Spray with more avocado oil and seasoning.
Bake face down for 25 minutes. Enjoy!