Steps
1. Preheat the oven to 375°F.
2. In a small baking dish, add the butter and place in the oven to melt for a few minutes.
3. Once the butter is melted, add the chopped chicken to the baking dish and top with the grated cheese.
4. Pour in the milk and sprinkle with a pinch of ground pepper.
5. Place in the preheated oven for 15 to 20 minutes, until cheese is melted and bubbly.
6. Serve hot.