Add the minced garlic and sliced mushrooms to the pot. Cook for another 5-7 minutes until the mushrooms are tender and have released their moisture.
Pour in the chicken broth and add the diced carrots, celery, shredded rotisserie chicken, thyme, and rosemary. Bring the mixture to a boil, then reduce the heat and let it simmer for 15-20 minutes.
Stir in the heavy cream and season with salt and pepper to taste. Allow the soup to heat through for an additional 5 minutes.
Serve hot, garnished with fresh parsley.
Notes
For a lighter version, substitute the heavy cream with half-and-half or coconut milk.
Add a handful of spinach or kale in the last few minutes of cooking for added nutrition and color.