01 -
Preheat oven to 175°C. Lightly grease a 33 x 23 cm baking dish.
02 -
In a large mixing bowl, stir together corn muffin mix, cream style corn, whole kernel corn, sour cream, melted butter, and shredded cheddar cheese until well combined.
03 -
Transfer the batter to the prepared baking dish, spreading it evenly.
04 -
Bake in the preheated oven for 45 minutes, or until the center is set and the top is golden brown.
05 -
Allow the casserole to cool for 10 minutes before serving. The texture will become firmer as it rests.