Sauté the Aromatics: Heat 1 tablespoon of olive oil in a large Dutch oven or heavy soup pot over medium heat. Add the diced yellow onion and sauté for 4 minutes until translucent. Add the minced garlic and cook for 1 minute until fragrant.
Toast Spices: Stir in the ground cumin, dried oregano, garlic powder, sea salt, and black pepper. Toast the spices in the warm aromatics for 60 seconds to unlock their fragrant oils.
Simmer Broth & Beans: Pour in the rich chicken bone broth, diced green chilies, sweet corn, and drained cannellini beans. Using a potato masher or the back of a large wooden spoon, mash about 1/3 of the beans against the side of the pot to naturally thicken the broth. Bring to a gentle boil, then reduce heat to medium-low and simmer for 15 minutes.
Incorporate Chicken & Cheeses: Reduce heat to low. Add the shredded chicken, softened cream cheese cubes, and grated Monterey Jack cheese. Stir continuously for 3 to 4 minutes until both cheeses melt completely into a silky, luscious creamy chili broth.
Season & Serve: Stir in fresh lime juice and chopped cilantro. Taste and adjust salt and pepper if desired. Ladle into deep bowls and top with avocado slices, crispy tortilla strips, and lime wedges!