Preheat your oven to 400°F and line a large baking sheet with parchment paper for easy cleanup.
Cut the chicken breast into bite-sized 1-inch cubes and slice the red bell pepper and zucchini into thin strips.
Place the chicken and vegetables on the baking sheet, drizzle with olive oil, and sprinkle with sea salt, black pepper, and dried oregano.
Toss everything together until evenly coated, then spread into a single layer to ensure proper roasting.
Roast in the oven for 18 to 20 minutes, or until the chicken is cooked through and the vegetables are tender and slightly browned.
While the chicken roasts, spread the hummus in a thick layer across the bottom of a shallow serving bowl or platter.
Arrange the warm roasted chicken and vegetables over the hummus base.
Finish the platter by crumbling the feta cheese over the top and drizzling with fresh lemon juice before serving.