Preheat the oven to 450 degrees . In a large bowl, toss the squash with the oil, coriander, 1 1/2 teaspoons salt and 1/2 teaspoon pepper. On each of 2 large baking sheets, arrange the squash in a single layer and bake, turning occasionally, until tender and golden-brown, about 30 minutes.
Transfer the squash to a serving bowl and toss with the crystallized ginger and cilantro.
