Winter Root Veg with Preserved Lemon Yoghurt

These roasted root veg are the perfect accompaniment to your Christmas roast. It's filled with the seasonal stars of the festive season, including squash, celeriac and beetroot. This is a fantastic recipe to prep-ahead; simply chop the vegetables the day beforehand, store in the fridge (or a cool place) and cook them in the oven whilst the potatoes are roasting.