Heat oven to 200C/fan 180C/gas 6. Put the
chicken into a medium roasting tray, then
rub with the harissa, oil and oregano.
Cover with foil and roast for 5 mins, then remove
the foil and add the cherry tomatoes and
olives to the tray. Roast for 10 mins more
until the tomato skins start to split and the
chicken is cooked through. Serve with boiled