Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Drain the chickpeas and tofu, then pat them very dry with a clean towel to ensure maximum crispiness.
In a large mixing bowl, combine the chickpeas, cubed tofu, and cauliflower florets with olive oil, garlic powder, sea salt, and black pepper.
Spread the seasoned mixture in a single layer on the prepared baking sheet, ensuring space between pieces for even roasting.
Roast for 25 to 30 minutes, tossing the ingredients halfway through, until the tofu is golden and the cauliflower is tender.
While the bowl base roasts, whisk together the nutritional yeast, hemp seeds, lemon juice, Dijon mustard, and water in a small bowl until a smooth, creamy dressing forms.
Divide the roasted vegetables and protein into bowls and drizzle generously with the savory dressing before serving.