Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Drain and rinse the canned chickpeas, then pat them thoroughly dry with a clean kitchen towel to ensure they crisp up.
Press the firm tofu to remove excess liquid and cut it into 1/2-inch uniform cubes.
Place the chickpeas, tofu cubes, broccoli florets, 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 until everything is evenly coated.
Roast in the oven for 20 to 25 minutes, tossing the ingredients halfway through, until the chickpeas are crunchy and the tofu is golden brown.
While the vegetables roast, whisk together the non-fat Greek yogurt and lemon juice in a small bowl until the consistency is smooth.
Spread the lemon-yogurt mixture across the bottom of a shallow serving bowl.
Pile the roasted vegetable, tofu, and chickpea mixture on top of the yogurt base.
Garnish with freshly chopped parsley and serve immediately.