Gather all ingredients.
In the crockpot, add the cooked chicken.
Pour in the vegetable broth.
Add the mixed vegetables and diced potatoes.
Stir in the chopped onion and minced garlic.
Season with thyme, salt, and black pepper.
Cover and set the crockpot to low for 6-8 hours.
Stir occasionally, if possible, to blend flavors.
Before serving, adjust seasoning to taste.
Serve hot, topped with shredded cheese if desired.