In a large pot, warm butter or oil over medium-high heat. After melted or warmed, add all chopped vegetables and minced garlic.
Add all seasonings and sriracha, and let cook until vegetables are soft and can be easily pierced with a fork. Stir occasionally to prevent sticking.
Add broth and increase heat to high. Bring to a boil.
Add package of noodles, as well as the rotisserie chicken (and the broth used to marinate if you used that tip.) Cook according to the directions on the noodle package.
Serve hot and enjoy your delicious one-pot rotisserie chicken noodle soup!