Preheat your oven to 400°F and line a large rimmed baking sheet with parchment paper for easy cleanup.
Pat the chicken breast dry with paper towels and cut into uniform one-inch cubes to ensure even cooking.
Rinse and drain the chickpeas, then pat them very dry with a towel to help them achieve a crispy texture in the oven.
Chop the red bell pepper into bite-sized pieces and slice the zucchini into half-moon shapes.
Place the chicken, chickpeas, peppers, and zucchini onto the prepared baking sheet in a single layer.
Drizzle the extra virgin olive oil over the mixture and sprinkle with sea salt, black pepper, garlic powder, and dried oregano.
Toss everything thoroughly with your hands or tongs until every piece is well-coated in oil and spices.
Roast for 20 to 25 minutes, tossing the ingredients halfway through, until the chicken is cooked through and the chickpeas are golden.
Remove from the oven, drizzle with fresh lemon juice, and garnish with chopped parsley before serving warm.