Gather all your ingredients.
Prepare the vegetables by dicing the onion, mincing the garlic, and slicing the mushrooms.
In a large pot, heat the olive oil over medium heat. Add the diced onion and sauté for 5 minutes until soft. Stir in the minced garlic and sliced mushrooms, cooking for an additional 5-7 minutes.
Add the chicken broth and bring to a boil. Reduce heat and let simmer for 10 minutes. Then, add the shredded rotisserie chicken and stir well.
Pour in the heavy cream and stir to combine.
Season with dried thyme, salt, and black pepper. Let simmer for another 5 minutes.
Serve hot, garnished with fresh parsley.