Cooking for 2 or 3 I don't roast a whole chicken, it's cheaper to just roast up some drumsticks, potatoes and yams. Dipped in butter, you get a crispy skin, and nobody fights over the legs!
New Zealand yams are usually only available in New Zealand and South America. They are sometimes known as oca and are a small vegetable with the flavour of a lemony parsnip. If you can not get yams, use parsnip instead.
The trick to a killer roast is your roasting pan. Make sure the bottom of your roasting pan is flat and about 1/4cm thick. That will give your potatoes a super crispy bottom.