01 - Heat olive oil over medium-high heat in a large Dutch oven or heavy-bottomed pot. Add chicken pieces and sauté until lightly browned on all sides, about 4–5 minutes. Remove and set aside.
02 - In the same pot, add onion, carrots, and celery. Cook for 4 minutes until tender. Stir in garlic and cook for another minute until fragrant.
03 - Return the seared chicken to the pot. Add salt, pepper, dried thyme, dried parsley, and bay leaf. Stir well to coat everything evenly.
04 - Pour in the chicken broth and water. Bring the mixture to a gentle boil over medium-high heat.
05 - Add the egg noodles and stir to submerge them. Reduce heat to a simmer, cover, and cook for 10–12 minutes, stirring occasionally, until the noodles are al dente and the chicken is cooked through.
06 - Stir in the frozen peas and heavy cream if using. Simmer uncovered for 3–5 minutes until the peas are tender and the broth has slightly thickened. Taste and adjust seasoning as needed.
07 - Remove and discard the bay leaf. Ladle into bowls and serve hot, garnished with fresh parsley if desired.