Preheat the oven to 450F. Line a baking sheet with parchment paper.
In a small bowl, mix together the coriander, paprika, ginger, garlic, and black pepper.
In a large bowl, add the squash, 1 tablespoon olive oil, 2 teaspoons spice mixture, and ½ teaspoon salt. Toss to coat, then transfer to the baking sheet and arrange into an even layer.
Add chicken to the bowl with remaining 1 tablespoon oil, remaining spice mix, and ¾ teaspoon salt. Toss to coat the chicken and rub the spices and oil all over. Arrange the chicken on top of the squash (skin-side-up).
Bake for 30-40 minutes, or until the chicken is cooked through (160F) and squash is browned.
Meanwhile, add the cabbage to a high-speed blender and blend until finely chopped (use a tamper tool to encourage blending). Transfer to a bowl. Add the parsley and pulse to finely chop and transfer to the same bowl. You could also chop by hand. Add lemon and salt and toss to coat.
Serve chicken and squash drizzled with the drippings from the pan (those chicken fonds/brown bits and fat infused with spices = so much flavor) with cabbage slaw, a dollop of yogurt (if using), and a sprinkle of salt over the yogurt. A squeeze of lemon is always a nice way to finish it off.