"Creamy" Vegetable Soup

Another creamy soup with no cream added.
It has an amazing flavour with not that many ingredients. Really good.
1 large onion
1 tbsp oil
2 carrots, peeled and chopped
7 cremini mushrooms, chopped
2 cloves garlic, chopped
14oz can of stewed tomatoes
1 can of water
1/4tsp celery salt
1/4 tsp paprika
1 1/2 tsp salt
1/2 tsp basil
1/2 tsp tarragon (or oregano)
1/2 tsp cumin
Dash of black pepper

Heat a skillet with the oil. Add the chopped onion and saute over medium heat unitl beginning to colour. Add the carrots and mushrooms and cook down until the oinions and muchrooms are very soft and the carrots have befun to soften. Add the garlic and saute until fargrant.

Add the tomatoes, water and spices. Process with a hand held processor until the soup is smooth. Gently heat until hot enough to serve.