Preheat the oven to 425 degrees. Coat a baking sheet with cooking spray.
Combine the olive oil with the maple syrup and spices; whisk until well combined.
Place the squash slices into a bowl and add maple syrup mixture; toss to coat evenly.
Place onto the baking sheet then sprinkle with sea salt.
Bake for 7 minutes, then flip the squash over. Continue to bake for about 10 minutes, then flip the squash over again. Continue baking for a few more minutes, until the squash is fork tender.
Remove from the oven and let them cool a bit before transferring to a serving tray.
Sprinkle with parsley and serve.