01 - Place the chicken breasts in a single layer at the bottom of the slow cooker.
02 - Sprinkle the ranch seasoning and taco seasoning evenly over the top of the chicken.
03 - Pour the chicken broth around the sides of the chicken rather than directly on top to keep the seasonings in place.
04 - Cover and cook on the low setting for 4 to 6 hours, or until the chicken is fork-tender and easily shreds apart.
05 - Use two forks to shred the chicken directly in the slow cooker, then stir everything together so the shredded meat absorbs the seasoned juices.
06 - Warm the tortillas according to the package instructions until pliable.
07 - Fill each tortilla with the shredded ranch chicken and top with lettuce, tomatoes, cheddar cheese, sour cream, cilantro, and a generous squeeze of fresh lime juice. Serve immediately.