Preheat oven to 400°F and line a large baking sheet with parchment paper.
Pat the chickpeas and tofu cubes very dry with a clean towel to ensure they get properly crispy during roasting.
In a large bowl, toss the chickpeas, tofu, and broccoli 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, tossing halfway through, until the tofu is golden and chickpeas are firm.
While roasting, whisk together the tahini, lemon juice, and nutritional yeast in a small bowl, adding a teaspoon of water for a smooth, drizzling consistency.
Transfer the roasted mixture to a bowl, drizzle with the savory lemon-tahini sauce, and top with hemp hearts for a final boost of protein.