Skinny Southwestern Slow Cooker Chicken Recipe

(about 15.5 ounces each) corn, drained

(about 15 ounces) black beans, rinsed and drained

jar (about 16 ounces) chunky salsa, divided

boneless, skinless, chicken breast halves (about 4 to 5 ounces each)

Southwest seasoning blend (optional)

low-fat shredded Mexican cheese blend