If you know you are going to be pushed on Christmas Day, then it is possible to half-roast the potatoes the day before (see Preparing Ahead, below). On Christmas Day the potatoes just need to be re-roasted in a hot oven for about 20 minutes.
A fresh,delicious meal in one oven dish! This is so easy,you can pop it in the oven and help the kids with their homework or do a quick workout while it cooks! Roasted white fish and vegetables with potatoes. Delicious magazine.