Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Drain and rinse the chickpeas, then pat them thoroughly dry with a clean towel to ensure they get crispy.
Place the dried chickpeas and broccoli florets on the baking sheet, drizzle with olive oil, and season with sea salt, black pepper, and garlic powder.
Toss the vegetables and chickpeas until evenly coated, then spread them out in a single layer.
Roast for 20 to 25 minutes, tossing halfway through, until the chickpeas are crunchy and the broccoli is tender with charred edges.
While the vegetables roast, whisk together the non-fat Greek yogurt and lemon juice in a small bowl until smooth.
Spread the lemon-yogurt mixture onto the bottom of a shallow bowl as a base.
Top the yogurt with the roasted chickpeas and broccoli.
Generously sprinkle the nutritional yeast and hemp hearts over the top for a savory, nutty finish.
Serve immediately while the roasted ingredients are warm and crisp.