Preheat your oven to 400°F and line a baking sheet with parchment paper.
Season the chicken breast with half of the sea salt, black pepper, and garlic powder, then grill or pan-sear until the internal temperature reaches 165°F.
Tear the kale into bite-sized pieces, removing the tough stems, and toss with olive oil and the remaining sea salt on the prepared baking sheet.
Roast the kale for 5 to 7 minutes until the edges are crisp and slightly golden, being careful not to let it burn.
In a small bowl, whisk together the tahini, lemon juice, and a tablespoon of warm water until the dressing is smooth and pourable.
Slice the cooked chicken into strips and combine in a large mixing bowl with the roasted kale and cooked quinoa.
Drizzle the lemon-tahini dressing over the salad and toss thoroughly to ensure every leaf is coated before serving.