Brown the ground beef. Drain and set aside.
In the same saucepan add 1 T butter and add onion, shredded carrots, parsley flakes, basil and celery. Sauté until tender.
Add the broth, potatoes and beef and bring to a boil. Reduce heat, cover and simmer 10-12 minutes or until potatoes are tender.
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.
Stir in the cheese, milk, salt and pepper. Cook and stir until cheese melts. Remove from heat and blend in sour cream.
