Chop the carrots, celery, and onions and set aside. Pull the chicken breast meat from your pre-cooked rotisserie chicken and shred it or give it a rough chop.
Heat olive oil over medium high heat in a large pot. Add celery, carrots and onion and saute until onions become translucent. Add in broth, salt, pepper, garlic, bay leaf, thyme, oregano, parsley, and chicken.
Turn heat to medium and allow soup to come to a low boil for about 30 minutes or until carrots are fully softened.
Add in dry pasta and allow to cook for about 10-15 minutes, or until al dente. Pour about 1 cup of the soup into a small bowl and whisk in the corn starch until dissolved. Add this mixture back into the soup and stir to fully combine.
Top with fresh parsley and serve with warm dinner rolls. Store leftovers in an airtight container in the fridge.