In a large bowl, season chicken with Italian seasonings, salt, and pepper. Set to the side.
To the insert of a slow cooker, add in sauce ingredients and mix together.
Gently add in chicken breasts, cover, and cook on low for 4-5 hours or high for 3 hours.
Once the chicken is cooked, add shredded cheese over the chicken and cover and continue cooking
until cheese melts, about 10 to 15 minutes.
Serve warm and enjoy!