Gather the ingredients.

Stir condensed soup, carrots, celery, onion, chicken stock, parsley, paprika, oregano, salt, and pepper together in a slow cooker until well combined; mixture will be thick. Nestle chicken breasts into the mixture and spoon some over to cover.

Cook on Low for 7 1/2 hours. Remove chicken from the slow cooker and shred using two forks.

Return shredded chicken to the slow cooker with frozen peas and corn. Continue cooking on Low until vegetables are hot, about 30 minutes.