Combine onion, spices, enchilada sauce, tomatoes, beans, corn, chicken and broth in the bowl of your Crock-Pot. Stir together to combine. Set on high and cook for 3 hours, or until chicken is tender. Remove chicken from Crock-Pot and shred. Return to pot and stir in cheese and cream. Stir and heat on low until cheese is melted. Taste and season with salt if needed. Serve into bowls and top with sour cream, cilantro, crushed chips, more cheddar and a slice of lime if desired.