Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Drain and rinse the chickpeas, then pat them and the cubed tofu very dry with a clean kitchen towel to ensure maximum crispiness.
Place the chickpeas, tofu, broccoli, and chopped bell pepper on the baking sheet.
Drizzle with olive oil and sprinkle with garlic powder, smoked paprika, sea salt, and black pepper, tossing well to coat evenly.
Spread the mixture in a single layer and roast for 25-30 minutes, tossing halfway through, until the chickpeas are golden and vegetables are tender.
In a small bowl, whisk together the tahini, lemon juice, and nutritional yeast, adding a teaspoon of warm water at a time until it reaches a smooth, pourable consistency.
Transfer the roasted vegetables and protein to a bowl and drizzle generously with the savory tahini dressing before serving.