Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Dice the chicken breast, red bell pepper, zucchini, and red onion into uniform bite-sized pieces.
In a large mixing bowl, combine the chicken and vegetables with the extra virgin olive oil, sea salt, black pepper, and dried oregano, tossing well to coat.
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 with slightly charred edges.
Spread the hummus in a smooth layer across the center of a large plate or platter.
Pile the roasted chicken and vegetable mixture directly on top of the hummus base.
Finish the dish with a squeeze of fresh lemon juice and a sprinkle of crumbled feta cheese before serving.