Preheat the oven to 425 degrees. Coat a baking sheet with cooking spray.
Cut the delicata squash in half, scoop out the seeds with a spoon, then slice. Combine the olive oil (or melted butter) with the maple syrup and a dash of cinnamon; whisk until well combined. Place the squash slices into a bowl and drizzle with the maple syrup mixture; toss to coat evenly. Place onto the baking sheet then season with a bit of sea salt, to taste.
Place into the oven and 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. Serve. Enjoy.