Preheat your oven to 400°F and line a large baking sheet with parchment paper for easy cleanup.
Rinse the quinoa in a fine-mesh strainer, then combine with 0.5 cup water in a small pot; bring to a boil, cover, and simmer for 15 minutes.
Place the cubed butternut squash, chickpeas, and chicken breast on the baking sheet; drizzle with half the olive oil and season with sea salt, black pepper, and garlic powder.
Roast for 20-25 minutes until the chicken is cooked through and the squash is tender and caramelized.
While the vegetables roast, place the chopped kale in a large bowl and massage with the lemon juice for 1 minute until softened and dark green.
Whisk the remaining olive oil and maple syrup together in a small jar to create a simple, clean vinaigrette.
Slice the roasted chicken into thin strips or bite-sized pieces.
Toss the cooked quinoa, roasted squash, chickpeas, and chicken into the bowl with the massaged kale.
Pour the dressing over the salad and toss thoroughly to ensure every leaf is coated before serving warm.