Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Rinse the chickpeas and pat them thoroughly dry with a paper towel to ensure they become crispy during roasting.
Place the chickpeas, cauliflower florets, and diced red bell pepper onto the baking sheet.
Drizzle with olive oil and sprinkle with smoked paprika, garlic powder, sea salt, and black pepper, tossing until evenly coated.
Roast for 25 to 30 minutes, tossing the vegetables halfway through, until the cauliflower is tender and the chickpeas are golden brown.
While the vegetables roast, whisk together the Greek yogurt, nutritional yeast, and lemon juice in a small bowl until smooth.
Spread the yogurt mixture at the bottom of a wide serving bowl.
Top the yogurt with the warm roasted vegetable and chickpea mixture.
Garnish with hemp hearts and freshly chopped parsley before serving.