Heat 1-2 tablespoons of olive oil or butter in a large pot or Dutch oven over medium heat.
Add the chopped chicken to the pot and cook until it's no longer pink, stirring occasionally. Remove the chicken and set aside.
In the same pot, add the chopped onions, sliced carrots, and celery.
Saute until softened, about 5-7 minutes.
Pour in chicken broth and return cooked chicken to the pot.
Season with salt, pepper, and optional herbs.
Bring to a gentle boil, then reduce heat and simmer for 15-20 minutes.
Meanwhile, cook noodles separately according to package instructions until al dente.
Drain and set aside.
Add cooked noodles to the pot of soup.
Stir well and let simmer for a few more minutes.
Ladle hot soup into bowls and serve immediately.
Enjoy your comforting chicken noodle soup.