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 have softened. Stir in 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 and simmer for 20 to 25 minutes, or until the chicken is fully cooked through and reaches an internal temperature of 165°F.
03 - Carefully remove the chicken breasts from the pot and set them aside on a cutting board. Use two forks to shred the meat into bite-sized pieces.
04 - Add the egg noodles to the simmering broth and cook for 7 to 8 minutes, stirring occasionally, until the noodles are tender but still hold their shape.
05 - Return the shredded chicken to the pot and stir to combine. Season with salt and black pepper to taste. Remove and discard the bay leaf.
06 - Ladle the hot soup into individual bowls. Garnish with freshly chopped parsley if desired and serve immediately.