01 - Heat a small amount of oil in a large pot over medium heat. Add the diced onion, sliced carrots, and sliced celery. Sauté for 4 to 5 minutes until the vegetables are softened. Add the minced garlic and cook for 1 additional minute until fragrant.
02 - Pour in the chicken broth and add the chicken breasts, bay leaf, dried thyme, and dried parsley. Bring the liquid to a gentle boil, then reduce the heat to low. Cover partially and simmer for 20 to 25 minutes, or until the chicken is cooked through and reaches an internal temperature of 165°F.
03 - Carefully remove the chicken breasts from the pot using tongs or a slotted spoon. Allow to cool slightly, then shred the meat using two forks. Set aside.
04 - Add the egg noodles to the simmering broth and cook for 7 to 8 minutes, or until the noodles are tender but still have a slight bite.
05 - Return the shredded chicken to the pot. Season with salt and black pepper to taste. Remove and discard the bay leaf. Stir gently to combine all ingredients and allow the flavors to meld for 1 to 2 minutes.
06 - Ladle the hot soup into serving bowls. Garnish with freshly chopped parsley if desired. Serve immediately while hot.