Heat olive oil in a large pot over medium-high heat. Add the diced onion, sliced carrots, and chopped celery, sautéing for 3-4 minutes until softened and fragrant. This vegetable foundation builds incredible depth.

Stir in minced garlic and cook for another minute, being careful not to burn it since garlic turns bitter quickly. The aroma signals everything's on track.

Add the chicken pieces to the pot, stirring to coat with oil and vegetables. Cook for 2-3 minutes to lightly brown the outside, though this chicken noodle soup doesn't require perfect browning since the broth takes over.

Pour in the chicken broth, then add dried thyme, oregano, and the bay leaf. Bring everything to a rolling boil, then reduce to medium heat and simmer for 10 minutes to ensure the chicken cooks through completely.

Add the egg noodles directly into the simmering comfort soup, stirring occasionally to prevent sticking. Cook for 7-8 minutes until noodles reach your preferred tenderness.

Fold in the fresh spinach and fresh parsley just before serving, letting them wilt into the warm broth for 1-2 minutes. Season with salt and black pepper to taste, adjusting as needed.