Preheat oven to 350°F (175°C) and grease a 9x13 inch baking dish.
In a large mixing bowl, combine the drained whole kernel corn, cream-style corn, sour cream, and melted butter.
Add the Jiffy Corn Muffin Mix, salt, and black pepper to the wet ingredients and stir until just combined.
Fold in the shredded sharp cheddar cheese until evenly distributed.
Pour the mixture into the prepared baking dish and smooth the top with a spatula.
Bake for 45 to 50 minutes until the edges are golden brown and the center is set.
Remove from the oven and allow to rest for 5 to 10 minutes before serving to ensure the structure sets.