Ham and Vegetable Creamed Soup

This is a very easy and very tasty soup. It only takes 20 minutes to make, so is great if you're short on time. It does make quite a bit, but freezes well.

16 oz. bag of frozen vegetables (broccoli and cauliflower mix)
1 cup real butter
½ cup chopped onion
6 cups milk
1 cup of diced ham
1 can of corn
½ cup celery

Cook vegetables in 2 cups of water and set aside. In a separate pan (large enough to make your soup in) over medium heat, melt butter with onion and celery till done. Add the flour and stir till well blended. Add the 6 cups of milk to this along with 4 crushed bouillon cubes. Stir till thick and smooth. Add the vegetables, and their water, to the soup pan. Then add the ham and corn. Salt and pepper to taste.