Cook the Mirepoix
Heat the olive oil in a large Dutch oven over medium-high heat. Add the onion, carrots, celery, and garlic. Cook, stirring often, for about 8 minutes, or until the vegetables are just softened.
Stir in Chicken and Broth
Add the shredded rotisserie chicken, chicken broth, Italian seasoning, salt, and pepper to the pot. Bring to a boil over medium-high heat. Once boiling, reduce the heat to medium and let it gently boil for 6 minutes.
Add Noodles
Stir in the uncooked egg noodles.
Simmer
Reduce the heat to medium-low and simmer for about 6 minutes, or until the noodles are tender.
Garnish and Serve
Garnish the soup with chopped fresh parsley, if desired, and serve warm.
Notes
Storage: Store leftovers in an airtight container in the refrigerator for up to 3 days. When reheating, add extra chicken broth if the soup has thickened.
Noodles: Wide egg noodles are recommended, but you can use other pasta shapes like elbow macaroni or fettuccine (broken into pieces). To prevent noodles from absorbing too much liquid, cook them separately and add just before serving.
Rotisserie Chicken Substitute: If you don’t have a rotisserie chicken, you can use cooked and shredded chicken breasts or thighs.