Gather all your ingredients and prep your workspace. Dice the onion and mince the garlic, keeping everything within easy reach.
Heat the large pot over medium heat and add a splash of oil. Sauté the diced onion, stirring occasionally, until it becomes translucent and fragrant, about 5 minutes.
Add the minced garlic to the pot and cook for another minute until it releases a rich aroma, stirring continuously to prevent burning.
Stir in the shredded chicken, white beans, corn, and diced green chilies, mixing everything well. Let the mixture cook for about 10 minutes, allowing the flavors to meld and the ingredients to warm through.
Pour in the chicken broth and stir in cumin and oregano. Bring the mixture to a gentle simmer, then reduce the heat to low and cook uncovered for 20-25 minutes, stirring occasionally to prevent sticking.
Taste the chili and adjust the seasoning with salt and pepper as needed. If it thickens too much, add a splash of water or broth to loosen it up.
Squeeze fresh lime juice into the chili for brightness and stir in chopped cilantro for a fresh, herbal finish.
Serve the white chicken chili hot in bowls, garnished with extra cilantro if desired. Enjoy the comforting, spicy, and bright flavors with a side of crusty bread or tortilla chips.