Place the chicken chunks at the bottom of your slow cooker. Add drained white beans, chopped green chilies, and minced garlic on top.
Pour in the chicken broth, then sprinkle the toasted cumin evenly over everything. Give it a gentle stir to combine.
Cover the slow cooker and set it to low. Let it cook for about 6 hours until the chicken is tender and shreds easily, and the beans are soft.
Once cooked, use two forks to shred the chicken directly in the pot, stirring it into the chili mixture to distribute evenly.
Squeeze fresh lime juice into the chili, then stir in chopped cilantro if using. Taste and adjust seasonings as needed—adding salt or more lime for brightness.
Allow the chili to sit uncovered for about 5 minutes, so flavors meld and the chili thickens slightly. Serve hot, garnished with additional cilantro or your favorite toppings.