Preheat the oven to 200°C/Fan 180°C/Gas 6. Mix all the ingredients together, including the oil from the artichokes, and season. Spread everything out evenly on a large foil-lined baking tin.
Roast for 30-35 minutes, until the potatoes are soft and the chicken is golden, the juices run clear and there is no more pink meat.
Press the roasted lemon slices with the back of a spoon to release their juice before serving.