Cheeseburger Soup

1 medium onion, chopped
1 cup shredded carrots
1 cup chopped celery
1 t. olive oil
1 lb. extra lean ground beef
Lightly saut? vegetables in olive oil, then add ground beef. Cook till
browned.
4 cups chicken broth.
5 cups diced, peeled potatoes
Add to pot. Bring to a boil and simmer until potatoes are tender.
1/4 cup flour
1 cup milk
Whisk together till smooth. Add to soup, stirring till blended. Bring to
a boil and cook 2-3 min.
12 ounces Velveeta, cubed
1 t. salt
1 t. black pepper
1/2 cup sour cream
Add to soup and stir until the cheese is melted. Remove from heat and
stir in sour cream.
serves 4 to 6