Place 1 lb of boneless skinless chicken breasts at the bottom of a 6-quart slow cooker.
Add the 15 oz can of diced tomatoes, 15 oz can of black beans, 1 cup of frozen corn, diced onion, minced garlic, diced jalapeno, 1 tsp cumin, 1 tsp chili powder, 0.5 tsp oregano, and 1 tsp salt.
Pour in 4 cups of chicken broth. Stir the ingredients gently to combine.
Cover the slow cooker and cook on the low setting for 6 to 8 hours, or on the high setting for 3 to 4 hours.
Carefully remove the cooked chicken from the broth. Shred the meat using two forks, then return the shredded chicken to the slow cooker.
Stir in 0.25 cup of fresh lime juice and 0.25 cup of chopped cilantro. Serve hot with optional garnishes like avocado or tortilla strips.