Slow Cooker Instructions: Place onion, garlic, diced green chiles, fire roasted diced tomatoes, enchilada sauce, chili powder, cumin, black beans and chicken broth in slow cooker. Stir well. Nestle the chicken into the mixture. Cook on low for 6-8 hours or high for 3-4 hours. Remove chicken, shred, and return to the slow cooker. Stir in corn. Season to taste with salt and pepper. Serve with toppings as desired.