Preheat the oven to 425°F (220°C).
In a large bowl, combine the broccoli, cherry tomatoes, bell peppers, and zucchini.
Drizzle the olive oil over the vegetables and sprinkle with garlic powder, paprika, salt, and pepper. Toss until the veggies are evenly coated.
Spread the vegetables in a single layer on a baking sheet lined with parchment paper.
Roast in the preheated oven for 20-25 minutes, or until the veggies are tender and slightly caramelized, stirring halfway through.
While the vegetables are roasting, prepare the quinoa according to package instructions.
To assemble the bowls, divide the cooked quinoa among four bowls. Top each with a generous scoop of hummus and the roasted vegetables.
Garnish with fresh parsley before serving.