Preheat oven to 400°F and line a large baking sheet with parchment paper.
Press the tofu for 15 minutes to remove moisture, then cut it into 1-inch cubes.
Place tofu, chickpeas, broccoli, and bell pepper on the baking sheet.
Drizzle with olive oil and sprinkle with garlic powder, smoked paprika, sea salt, and black pepper.
Toss the ingredients until evenly coated and spread them into a single layer.
Roast for 25 minutes, flipping halfway through, until the tofu is golden and crispy.
In a small bowl, whisk together the tahini, lemon juice, and nutritional yeast with a tablespoon of warm water.
Transfer the roasted vegetables and protein to a bowl and finish with the zesty tahini drizzle.