In stock pot bring chicken broth, sauce, beans and red pepper flakes to a boil.
Turn heat to low and simmer.
Season chicken breast with s&p and add to pot.
Let chicken cook while stirring occasionally - about 10 minutes.
Add in spinach and let wilt.
Let cook about 5 minutes more.
Add in basil and top with grated cheese.
Season with s&p to taste.
Enjoy!