Add chicken in single layer to the slow cooker. Sprinkle chicken evenly with taco seasoning. Add in the Rotel, green chiles and chicken broth.
Cover and cook on low for 6 to 8 hours, or on high for 4 to 6 hours.
Remove excess liquid from the slow cooker leaving just a little behind. Shred chicken using two forks. Add in the queso and gently mix with chicken, coating chicken evenly. Cover and cook on low for 20 minutes or until heated through. Serve with tortillas and your favorite taco toppings.