Healthy, Hearty Winter soup

This soup is delicious and satisfying! It's very easy to make and will warm you up on even the coldest Winter day.

Ingredients:
1 tsp olive oil
2 x Leek
1 x large brown onion
1 x medium cauliflower
1-2 x large broccoli heads
3 x medium white or pink potatoes
1 x medium sweet potato
3 x medium carrots 
1 x medium swede
1 x bunch of flat leaf parsley
1 x large carton of chicken or vegetable stock (homemade is best, but Massell and Campbells make decent stock).


Method:
Dice the onion, roughly slice the leek and sautee them with the olive oil in a large saucepan until translucent.
Roughly chop all the other vegetables (except parsley) into pieces about the size of a golf ball and add to the saucepan. 
Pour in the stock and add enough water to almost cover the vegetables.
Cover with a lid and allow to cook on a low-moderate heat for 45-80 minutes. (It won't matter if it's left a little longer).
Remove lid and add roughly chopped parsley, then put the mixture through a food processor in batches until a smooth, thick consistency is achieved.
If the soup is too thick, add water or stock. If it's too thin, add some mashed potato.


Garnish with some fresh parsley, cracked black pepper and even a little low fat sour cream.