Broccoli and Potato Soup

2 tsp. olive oil
1/2 onion, chopped
1 med. potato, peeled and diced into 1/2" pieces
3 c. broccoli, chopped (frozen works well)
3 c. vegetable stock
1 c. Monterrey Jack cheese, shredded

In large pot, saute onion in oil over med. heat. Add potatoes, broccoli and stock; bring to a boil. Reduce heat and simmer, covered. for 12-15 mins. Remove from heat and allow to cool slightly. Puree in blender, food processor, or with a hand-held mixer. (Recipe says to add the cheese in while you puree, but it works just as well to serve it on the side. You can also add some diced ham after pureeing for a bit of protein.)