Heat 1 Tablespoon of oil in a large pan over medium high heat.
Sauté onions for 3 minutes then add garlic, carrots, bell peppers, celery, and jalapeños, then cook for an additional 3 minutes.
Place the sautéed veggies in a large slow cooker together with the rest of the ingredients besides the cilantro, lime, and avocado.
Cover and cook on LOW for 6-8 hours, or on HIGH for 3-4 hours.
Once cooked, take the chicken out and shred chicken with a fork, then return it to the soup.
Stir in fresh chopped cilantro and lime juice.
Ladle soup into bowls and garnish with chopped avocado and fresh chopped cilantro and fresh lime wedges.
Enjoy while hot!
Even better the next day, so double the batch!