Arrange butternut squash in a single layer on a rimmed baking sheet; coat with cooking spray. Sprinkle evenly with salt and pepper. Bake at 425° for 15 minutes or until browned, stirring halfway through cooking.
Combine lime juice, canola oil, vinegar, and dash of sugar in a small bowl, stirring with a whisk. Combine squash, cilantro, coconut flakes, and red chile in a large bowl; toss gently to combine. Drizzle juice mixture over squash mixture; toss to coat.