01 - Arrange chicken breasts or thighs in the bottom of the slow cooker, ensuring even distribution for consistent cooking.
02 - Sprinkle taco seasoning, smoked paprika, salt, and black pepper evenly over the chicken pieces.
03 - Pour salsa and chicken broth (or water) over the seasoned chicken. Squeeze fresh lime juice directly into the cooker.
04 - Cover and cook on high setting for 4 hours or low setting for 7 hours, until chicken reaches internal temperature of 165°F and shreds easily.
05 - Transfer cooked chicken to a cutting board. Using two forks, shred thoroughly by pulling meat apart in opposite directions.
06 - Return shredded chicken to the slow cooker and stir thoroughly to absorb all cooking liquids and spices.
07 - Warm taco shells according to package directions, either in oven, microwave, or dry skillet until pliable.
08 - Fill each warm shell with shredded chicken mixture. Top with lettuce, cheese, sour cream, tomatoes, red onion, avocado slices, cilantro, and fresh lime juice to taste. Serve immediately.