Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Cut the chicken breast, bell pepper, zucchini, and red onion into uniform 1-inch pieces.
Rinse and drain the chickpeas, then pat them dry with a paper towel to ensure they get crispy.
In a large bowl, toss the chicken, chopped vegetables, and chickpeas with the olive oil, dried oregano, sea salt, and black pepper until evenly coated.
Spread the mixture in a single layer on the prepared baking sheet.
Roast for 18-20 minutes, or until the chicken is cooked through and the vegetables are tender and slightly caramelized.
While the mixture roasts, spread the hummus in a thick layer across the bottom of a serving plate or shallow bowl.
Pile the warm roasted chicken and vegetable mixture directly onto the hummus base.
Garnish the platter with chopped fresh parsley and a bright squeeze of lemon juice before serving.