Preheat oven to 220°C (425°F). Place the basil, lemon zest, garlic and oil in a bowl and stir to combine. Place the chicken and zucchini on a baking tray and spoon over the basil mixture. Roast for 10 minutes. Add the tomatoes and roast for a further 5 minutes or until the chicken is cooked through. Top with extra basil leaves and serve with lemon wedges. Serves 2.