How to Make It
Heat oven to 450° F. Toss the squash,1 tablespoon of the oil, ½ teaspoon salt, and ¼ teaspoon pepper on a rimmed baking sheet. Roast, turning once, until tender, 18 to 20 minutes.
Meanwhile, heat 1 tablespoon of the oil in a large skillet over medium heat. Season the chicken with the coriander, ginger, cinnamon, ½ teaspoon salt, and ¼ teaspoon pepper and cook until an instant-read thermometer inserted in each breast registers 165º F, 7 to 10 minutes per side. Transfer to a plate and tent loosely with aluminum foil to keep warm. Reserve the skillet.
Add the remaining tablespoon of oil to the drippings in the skillet. Add the kale, prunes, and garlic; cover and cook, tossing occasionally, until the kale is tender, 5 to 7 minutes. Add the squash and toss to combine. Serve with the chicken.