Lightly grease a pie dish and add the whole mixture to it. Place the bundle of herbs in the middle of the pie. Moisten with a little giblet stock. Most of us would never use the giblets of a chicken for stock these days and many purchased chickens have them already removed. You could use a store bought vegetable or chicken stock though. Allow the mixture to cool.
Bake in the oven for 11/2 hours. Check your oven's guide for the best cooking times, for a vegetable bake of this kind.
Eat and enjoy.
History of Wolton pie here