Cheesy Broccoli & Potato Soup

This is a very easy soup to make, and it is very yummy. I got it out of Parents Magazine.

2 tsp. olive oil
1/2 onion
1 medium potato, peeled and diced into 1/2-inch pieces
3 cups broccoli chopped
3 cups low-salt vegetable stock (GF)
1 cup reduced-fat Monterey Jack cheese, shredded

1. In a large stockpot, heat oil and saute the onion for 5 to 7 minutes over low to medium heat. Add potatoes, broccoli, and stock; bring to a boil. Reduce to a simmer and cook, covered, for 12 to 15 minutes or until broccoli and potatoes are tender when pierced with a for.
2. Remove the mixture from stove top; allow to cool a bit. Pour the mixture and cheese into a blender; puree. (Or use a handheld blender to do it right in the stockpot.) Serves 4.

I had to use chicken stock because my grocery store did not have vegetable stock. But I don't think you can tell the difference.