Preheat your oven to 350°F/180°C.
Add creamed corn, sweet corn, jiffy corn muffin mix, sour cream, and butter in a large bowl and mix until combined.
Now, pour the mixture into your greased casserole dish and bake for 45 minutes uncovered. Remove from the oven and cover with cheese and return it to the oven until the cheese has melted, approximately 5 - 10 minutes.
Serve immediately and enjoy!
