Preheat the oven to 425°F.
Rinse and drain the chickpeas. Pat them dry and toss with smoked paprika, cumin, garlic powder, salt, and pepper. Spread on a baking sheet.
Peel and dice the sweet potato into cubes. Toss with a little olive oil, salt, and pepper, and spread on a separate baking sheet.
Cut the firm tofu into 1-inch cubes. Season lightly with salt and pepper.
Roast the chickpeas and sweet potato in the preheated oven. Chickpeas should crisp up in about 25-30 minutes, and sweet potato cubes in about 30-35 minutes. Stir halfway through for even roasting.
While the chickpeas and sweet potato roast, pan-sear the tofu cubes in a non-stick skillet over medium heat until all sides are golden and crispy, about 6-8 minutes.
Prepare the tahini dressing by stirring 1 teaspoon of tahini with a small splash of water, a squeeze of lemon (optional if available), salt, and pepper until smooth.
Assemble the bowl by layering the roasted chickpeas, sweet potato, and crisped tofu over a bed of fresh baby spinach.
Drizzle the creamy tahini dressing over the bowl and serve warm.