Preheat your oven to 350℉. Grease an 8x8 baking dish with butter.
In a large saucepan, combine cream cheese, butter, and milk. Stir the mixture over medium heat until it melts and becomes smooth.
Take the saucepan off the heat, and add corn, cheddar and ½ cup of Parmesan cheese, hatch green chiles, salt, and pepper. Stir everything together until well combined.
Spread the mixture evenly into the prepared baking dish, and sprinkle the remaining Parmesan cheese on top.
Cover the dish with foil and bake it for 20 minutes. Remove the foil and continue baking for an additional 10 minutes to brown the cheese.
Once done, sprinkle fresh chives and serve the dish immediately.
