Place cubed chicken breast, carrots, onion, celery, garlic, olive oil and thyme in slow cooker.
Season with 1/2 teaspoon salt and 1/2 teaspoon pepper.
Cook on low heat 6-7 hours.
Add in the egg noodles and parsley. Cook the noodles 30 minutes or until they are tender. If you would like a creamier version add one can of cream of chicken soup at the beginning of the recipe.