Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Slice the chicken breast into thin, even strips and chop the zucchini, bell pepper, and red onion into bite-sized pieces.
In a mixing bowl, toss the chicken and vegetables with the olive oil, dried oregano, garlic powder, sea salt, and black pepper until well coated.
Spread the mixture in a single layer on the prepared baking sheet and roast for 18 to 20 minutes, or until the chicken is cooked through and the vegetables are tender and slightly charred.
While the chicken and vegetables roast, spread the hummus onto the center of a large plate or shallow bowl using the back of a spoon.
Top the hummus with the warm roasted chicken and vegetable mixture.
Finish the platter by sprinkling the crumbled feta cheese over the top and adding a fresh squeeze of lemon juice.