Before You BeginPrepare equipment and ingredients as needed. Cooking times and results may vary depending on your equipment and ingredients. Place chicken in slow cooker in a single layer and season lightly with salt, pepper, and taco seasoning.
Pour diced tomatoes with juices evenly over chicken.
Spoon queso dip on top. Add broth only if a thinner sauce is desired. Do not stir yet.
Cover and cook on LOW 6–7 hours or HIGH 3–4 hours until chicken is tender and reaches an internal temperature of 165°F (74°C).
Shred chicken directly in slow cooker using two forks.
Stir thoroughly so chicken is evenly coated in sauce.
Let mixture rest 5–10 minutes to thicken slightly.
Serve warm in tortillas with toppings if desired.