1. In a food processor or blender, blend 1 can of the drained beans with 1 cup of the chicken broth until pureed. Set aside.
2. In a large pot over medium-high heat, warm the olive oil until shimmering. Add the diced onion and sauté for about 5 minutes, or until the onion becomes translucent. Add the garlic and cook for an additional minute. Add the jalapeno, bell pepper, and can of diced chilies and cook for another 5-6 minutes, or until the pepper begins to soften. Add the cumin, chili flakes, cayenne pepper and black pepper, and cook for about 2 more minutes to allow the spices to release their aromas. Add the remaining chicken broth, bean puree, second can of beans and shredded chicken and bring the mixture to a boil. Reduce the heat to a simmer and cook for 15 minutes.
3. Remove from heat, and add the lime juice and cilantro, stirring thoroughly. Serve immediately, and top with cheese, avocado and sour cream.

Once cooled, leftovers can be kept in the refrigerator for 4-5 days, or frozen for up to 2 months in an airtight container. Thaw overnight in the fridge; you may need to add extra chicken broth while reheating if it has thickened up too much.