Preheat the oven to 400°F and line a large baking sheet with parchment paper.
Press the extra firm tofu for 15 minutes to remove moisture, then cut into 1-inch cubes.
Place the tofu cubes, chickpeas, and diced sweet potato onto the prepared baking sheet.
Drizzle with olive oil and season with garlic powder, smoked paprika, sea salt, and black pepper.
Roast for 25 minutes, tossing halfway through, until the sweet potatoes are tender and tofu is golden.
In a small bowl, whisk the tahini and lemon juice together with a teaspoon of warm water until creamy.
Place the cooked quinoa and chopped kale in a serving bowl and top with the roasted ingredients.
Sprinkle with hemp seeds and finish with the tahini dressing before serving.