Combine the chicken, onions, celery, green chili peppers, garlic, cumin, chili powder, 1 1/2 teaspoons of salt and pepper in a large slow cooker.

Stir to make sure the spices coat everything, and nestle the chicken into the vegetables.

Pour the chicken broth on top, covering the chicken and vegetables.

Place the lid on the slow cooker.

Cook for 4 hours on high or 6 hours on low.

Remove the lid of the slow cooker and add the beans, tomatoes and corn. Taste and add another 1/2 teaspoon of salt, chili flakes and other seasonings, as desired. Add the lid back on and cook on low for another hour.

Lift the chicken from the slow cooker and shred it into small pieces with two forks. Stir the chicken back into the soup and cook on low for one more hour.

Scoop about 1-1/2 cups of beans out of the pot and blend/mash for a few seconds. Add the mashed beans back into the pot (for thickness). Add 1 cup of shredded cheese into the pot and stir to melt.

Serve with shredded cheese, lime wedges, chopped cilantro, sour cream (or plain greek yogurt), and tortilla chips.