Pre-heat the oven to 450 degrees. Prepare squash by cutting in half, scooping out pulp and seeds and peeling off the skin with a vegetable peeler. Cut into 1 inch cubes.
Line a large baking sheet with aluminum foil and then spray with cooking spray. Place cubed squash in a single layer on the baking sheet and drizzle with olive oil. Sprinkle with salt and garlic.
Roast Squash for 10 minutes. Stir with a plastic spatula and roast for another 5 minutes. Let cool for 2 minutes before serving.