Cheaters Homemade Soup

I make this soup recipe all the time.
Using some fresh cut up vegetables
and a very good secret ingredient.
This secret ingredient was so good
that I emailed the company to thank
them for making this great product.

Ingredients:
1 celery stalk,thinly sliced
1 onion, peeled, chopped
1 carrot, peeled, thinly sliced
4 fresh mushrooms,sliced
1 tomato, sliced
1 can Progresso soup (secret ingredient)
2 tablespoons olive oil

Directions:
In a soup pot put carrots,
onions,celery, and mushrooms.
Cover with water, add olive oil
and bring to a boil.
Cook until vegetables are tender
and most water has evaporated.
add the secret ingredient,
(a can of Progresso soup)
Cook to just heat through.
Do not boil.
Add sliced tomato and serve
with grated parmesan cheese.