Spray slow cooker with non-stick cooking sprayPut half the salsa in your slow cooker. Place chicken breasts onto salsa, sprinkle taco seasoning on top of chicken. Pour rest of salsa on top of chicken and seasonings.Note- do not add other ingredients until cooking time is overCook on low for 8 hours.Add sour cream, rice, cheese, and black beans to slow cooker, give it all a big stir.Serve in warmed tortillas