Preheat oven to 400°F and line a large baking sheet with parchment paper.
Press the tofu to remove excess moisture, then cube into bite-sized pieces.
Peel and cube the sweet potato into 1/2-inch pieces.
In a large bowl, toss the tofu, sweet potato, and chickpeas with olive oil, garlic powder, smoked paprika, sea salt, and black pepper.
Spread the mixture in a single layer on the baking sheet and roast for 25-30 minutes, flipping halfway, until the tofu is golden and potatoes are tender.
While roasting, place the kale in a bowl with lemon juice and a pinch of salt, massaging with your hands until the leaves are softened and dark green.
Assemble the bowl by layering the massaged kale, roasted tofu, sweet potatoes, and chickpeas.
Top with nutritional yeast and hemp seeds, then drizzle with tahini before serving.