Place the chicken breasts in the bottom of a slow cooker.
Pour the salsa evenly over the chicken.
Sprinkle the taco seasoning over the salsa.
Cover and cook on low for 6–8 hours or on high for 3–4 hours, until the chicken is tender and reaches an internal temperature of 165°F.
Remove the chicken from the slow cooker and shred it with two forks. Return the shredded chicken to the slow cooker and stir until evenly coated with the salsa mixture.
Serve as is, over rice, or in tortillas.
Notes
Refrigerate any leftovers in an airtight container for up to 5 days.