Add all the ingredients except for the toppings to the bowl of your crockpot.
Cook on LOW for 6-8 hours or on HIGH for 4-6 hours.
Once the chicken is cooked, remove from the slow cooker and shred it using forks, or a KitchenAid mixer.
Return chicken to the slow cooker, gently stir everything together and cook for an additional 30 minutes.
Divide the Mexican chicken among 4-5 bowls and top with diced avocado, jalapenos, green onions, shredded cheese, Greek yogurt and lots of cilantro.