Preparation
Preheat the oven to 180°C (160°C fan, gas 4).
Peel the carrots and parsnips and halve lengthways.
Thoroughly wash the potatoes and cut in half or quarters.
Peel the garlic cloves.
Cut the lemon in half.
Spread the chicken with the melted butter.
Season with salt and pepper.
Reserve 1-2 sprigs of rosemary, then pluck the rest of the leaves and chop finely.
Sprinkle the chicken with the chopped rosemary.
Place a lemon half in the chicken cavity.
Push in the rosemary sprigs.
Place the vegetables and remaining lemon half in a roasting tin and drizzle with olive oil.
Season with salt and pepper.
Place the chicken, breast side up, on the vegetable bed. Roast for 1 hour in the oven, adding extra water if needed. Baste the chicken from time to time with the roasting juices.