Wash with water and a scrubber brush. You want to make sure the squash is thoroughly cleaned since you are eating the skin.
Preheat oven to 425.
Place some parchment paper on a baking sheet.
Using a sharp knife, cut the squash down the middle lengthwise and scrape out the seeds.
Then cut into 1/4- to 1/2-inch slices, keeping the size of the slices as consistent as possible.
Rub with slices with avocado (because high heat) and sprinkle with salt and pepper.
Spread out the moon shapes on a baking sheet and roast for 20 minutes. Then flip each slice and roast for another 10-15 minutes depending on desired crispiness.