Before adding the peas, cook the carrot, onion, leek and bay leaves in the vegetable stock until the vegetables are soft.
Add the frozen peas, cook according to pack instructions and bring back to the boil
Remove from the heat, remove the bay leaves and blend in a liquidiser until smooth, with the soup consistency of your choice
Reheat gently, add the ham and season to taste with salt and pepper
Sprinkle with parsley and serve