Cheeseburger Soup

My friend made this soup the other day and it was so good. I didn't get her exact recipe but I found this one on the internet and it was really good. The picture isn't so awesome, but it really does taste good!

Cheeseburger Soup
Source: The Recipe Critic

1 pound ground beef
1 1/2 cup chopped onion
1 1/2 cup shredded carrots
11/2 cup diced celery
1 teaspoon dried basil
2 teaspoon dried parsley flakes
4 tablespoons butter, divided
6 cups chicken broth
8 cups peeled and diced potatoes
1/2 cup all purpose flour
4 cups of cheese
1 1/2 cups milk
3/4 teaspoon salt
1/4 to 1/2 teaspoon pepper
1/2 cup sour cream
1.  Brown the ground beef in 3 quart saucepan.  Drain and set aside.
2. In the same saucepan add 1 T butter and add onion, shredded carrots, parsley flakes, basil and celery.  Saute until tender.
3.  Add the broth, potatoes and beef and bring to a boil.  Reduce heat, cover and simmer 10-12 minutes or until potatoes are tender.
4.  In small skillet melt remaining butter (3 T) and add the flour.  Cook and stir for 3-5 minutes or until bubbly.  Add to the soup and bring to a boil.  Cook and stir for 2 minutes.  Reduce heat to low.
5. Stir in the cheese, milk, salt and pepper.  Cook and stir until cheese melts.  Remove from heat and blend in sour cream.  
Yield 8 servings