In a small bowl, combine the ranch seasoning, cumin, chili powder, onion powder, and garlic powder—mixing these dry seasonings together ensures even distribution throughout the chili and prevents clumping. Place the cream cheese on the counter to come to room temperature (this prevents it from curdling when added to the hot liquid later). Drain and rinse the black beans in a colander, running them under cool water for about 30 seconds to remove excess starch and improve texture.

Grease a slow cooker (6-quart capacity works well) and add the chicken breasts in a single layer at the bottom. Pour the corn, drained black beans, and diced tomatoes with green chilies over the chicken, then sprinkle the seasoning mixture from Step 1 evenly over everything. Add the water and stir well to distribute the seasonings throughout—this creates an even flavor base before the long cook time. The liquid should just barely cover the chicken; if your slow cooker runs hot, use slightly less water.

Place the room-temperature cream cheese on top of the mixture (do not stir it in yet—keeping it on top allows it to melt gently and incorporate smoothly). Cover and cook on low for 6-8 hours or on high for 4 hours. I prefer the low setting because it develops deeper flavor and keeps the chicken incredibly tender. The chili is ready when the chicken shreds easily with a fork and the flavors have melded beautifully.

Remove the chili from heat and stir well, breaking up the cream cheese so it fully incorporates into the sauce and creates a creamy texture. Using two forks or a slotted spoon, shred the chicken directly in the pot, breaking it into bite-sized pieces. Stir again to combine the shredded chicken throughout. Taste and adjust seasoning if needed—you can add more chili powder or cumin to taste at this point.

Ladle the chili into bowls and top with shredded Mexican blend cheese, a dollop of sour cream, diced avocado, diced fresh tomatoes, and crushed tortilla chips. The warm chili will slightly soften the tortilla chips while they add a satisfying crunch, and the cool toppings create a nice textural and temperature contrast.