In a 4-qt slow cooker, combine chicken, onion, garlic, sweet pepper, black beans, green chiles, diced tomatoes, chicken broth, enchilada sauce, seasonings, and salt and pepper for seasoning. Cover crockpot and cook on high 3-4 hours or until chicken registers 165F. Remove chicken from slow cooker and use two forks to shred. Return to crockpot and stir in cubed cream cheese. Cover crockpot and cook on high an additional 1 hour until soup is creamy and cream cheese is melted.