In a large bowl combine uncooked ground turkey, rice, beans, corn, enchilada sauce, cheese, chili powder, cumin, and a sprinkle of salt and pepper.
Place filling into the cavity of each pepper.
Spray the bottom of a slow cooker with cooking spray and add ½ cup water to cover the bottom.
Carefully add peppers to slow cooker in a standing fashion.
Cover and cook on low 4-6 hours or on high 2-3 hours.
Serve with desired toppings.