Mix together salsa and taco seasoning in the slow cooker. Add chicken. Cook on high for 3 hours or low for 6 hours.*
Remove chicken and shred it with 2 forks. Return it to the slow cooker, and mix in cilantro and lime juice.
Warm your tortillas and fill them with shredded chicken and your toppings.
Notes
Cooking Time: You can cook the chicken on high for 3 hours, or on low for 6 hours. If you can, I would recommend cooking it on low for 6 hours. The chicken will be even more juicy and tender.