Preheat the oven to 400°F and line a large baking sheet with parchment paper for easy cleanup.
Drain and rinse the chickpeas, then pat them completely dry with a clean kitchen towel to ensure they achieve a crispy texture.
Place the chickpeas, broccoli florets, and diced red bell pepper on the prepared baking sheet.
Drizzle with avocado oil and sprinkle with sea salt, black pepper, and garlic powder, tossing well to coat every piece.
Roast in the oven for 20 to 25 minutes, tossing halfway through, until the vegetables are tender and the chickpeas are golden.
In a small bowl, whisk together the Greek yogurt, nutritional yeast, lemon juice, and Dijon mustard until the sauce is smooth and creamy.
Spread the creamy yogurt mixture at the bottom of a serving bowl to create a flavorful base.
Top the yogurt with the roasted vegetable and chickpea mixture, then sprinkle with hemp seeds for a final boost of protein and crunch.