Wash and dry the potatoes. Then, cut them into small pieces about 1/2-1 inch in size. Also, dice the onion, wash and chop the celery, wash and chop the carrots, and crush the garlic.
Add the boneless skinless chicken breasts to your slow cooker. Season both sides of the chicken with salt and pepper.
Add the potatoes, celery, carrots, onions, and peas to the slow cooker.
In a bowl, mix the cream of chicken soup, chicken broth, garlic, chopped rosemary, chopped thyme, and dried Italian herbs. Thoroughly combine and then add the mixture to the slow cooker. Lightly mix all of the ingredients in the slow cooker.
Cook everything in the slow cooker on low for 5-6 hours or on high for 3-4 hours. Once done and once the chicken is fully cooked, remove the chicken from the slow cooker. Shred the chicken and then put it back in the slow cooker and mix. Let everything cook on low for another 10-15 minutes or until you are ready to serve and enjoy.