Preheat your oven to 400°F and line a large baking sheet with parchment paper.
Press the extra firm tofu with a heavy object for 10 minutes to remove excess moisture, then cut into 1-inch cubes.
Peel and dice the sweet potato into 1-inch cubes and drain the canned chickpeas.
In a large bowl, toss the tofu, sweet potato, and chickpeas with olive oil, garlic powder, sea salt, and black pepper.
Spread the mixture in a single layer on the prepared baking sheet and roast for 25 to 30 minutes, flipping halfway through.
While roasting, place the chopped kale in a bowl and massage it with a squeeze of lemon and a pinch of salt until it becomes tender.
In a small jar, whisk together the tahini, remaining lemon juice, and a teaspoon of warm water to create a smooth dressing.
Assemble the bowl by placing the massaged kale at the base and topping with the roasted tofu, sweet potatoes, and chickpeas.
Finish the bowl by sprinkling with nutritional yeast and hemp seeds, then drizzle the creamy tahini dressing over the top.