Preheat your oven to 350°F (175°C).
In a large mixing bowl, combine cornmeal, baking powder, salt, and pepper.
In another bowl, whisk together milk and eggs until well combined.
Gradually add the milk mixture to the cornmeal, stirring until smooth.
Fold in the creamed corn, cheese, sausage, and green onions.
Pour melted butter into the mixture and combine thoroughly.
Transfer the mixture into a greased baking dish.
Bake for 30-35 minutes until the top is golden and a toothpick inserted comes out clean.
Let it cool for a few minutes before serving.
Slice and enjoy this delicious cornbread casserole warm.