Preheat oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Pat the tofu and chickpeas completely dry with a clean towel to ensure they get crispy.
In a large bowl, toss the tofu, chickpeas, broccoli, bell pepper, and onion with olive oil, sea salt, black pepper, garlic powder, and smoked paprika.
Spread the mixture in a single layer on the prepared baking sheet and sprinkle with nutritional yeast.
Roast for 25-30 minutes, tossing halfway through, until the vegetables are tender and the tofu is golden brown.
While roasting, whisk together the Greek yogurt, lemon juice, and dried dill in a small bowl to create the dressing.
Divide the roasted mixture into bowls and drizzle generously with the lemon-dill sauce before serving.