Spray the inside of the slow cooker with non-stick cooking spray.
Place the boneless skinless chicken breasts in the bottom of the slow cooker.
Salt & pepper the chicken breasts.
Pour the frozen corn, salsa, black beans and green chiles over the chicken breasts.
Heat on low for 5-6 hours or 3-4 hours on high.
Shred the chicken and serve over rice or in tortillas.