Chicken Wild Rice Soup

this recipe was given to me by my sister MaryAnn. I love it!
1 med onion
2 celery stick, chopped finely
2 carrots, sliced finely
1/2 c butter ( I get away with just using a 1/4)
1/2 c flour
1/2 tsp salt
1/4 tsp pepper
4 c chicken broth
1 Pkg Uncle Bens Wild Rice (microwave according to pkg)
2 c half and half ( I use fat free)
2 cups shredded, boiled chicken
1 tsp. parsley

Melt butter in a pan, add onion, celery, carrots and saute..Stir in flour, blend it around, add 4 c chicken broth, bring to a boil. Boil for 1 min. than add 2 c cooked rice. than add all other ingredients.