01 - In a large pot, heat a small amount of oil over medium heat. Add the diced onion, sliced carrots, and sliced celery. Sauté for 4 to 5 minutes until the vegetables are 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 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 and place them on a cutting board. Use two forks to shred the meat into bite-sized pieces. Set aside.
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 before serving.
06 - Ladle the hot soup into individual bowls. Garnish with chopped fresh parsley if desired. Serve immediately while hot.