Preheat your oven to 400°F and line a baking sheet with parchment paper.
Chop the zucchini, bell pepper, and red onion into uniform bite-sized pieces.
Toss the vegetables on the prepared sheet with half of the olive oil, the dried oregano, and a pinch of the salt and pepper.
Roast the vegetables for 18-20 minutes until they are tender and slightly charred at the edges.
While the vegetables roast, season the chicken breast with garlic powder and the remaining salt and pepper.
Heat the remaining olive oil in a skillet over medium-high heat and cook the chicken for 5-6 minutes per side until golden and cooked through.
Allow the chicken to rest for 3 minutes before slicing it into thin strips.
Spread the hummus in a circular layer on a large plate or shallow bowl.
Top the hummus with the roasted vegetables and sliced chicken.
Garnish the platter with crumbled feta cheese, chopped fresh parsley, and a bright squeeze of lemon juice.