Step 1: Preheat the Oven

Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish with butter or non-stick spray.

Step 2: Mix the Ingredients

In a large mixing bowl, combine drained whole kernel corn, creamed corn, sour cream, melted butter, and Jiffy corn muffin mix. Stir until well combined.

Step 3: Add Cheese (Optional)

For a richer, cheesy flavor, stir in 1 cup of shredded cheddar cheese.

Step 4: Season the Mixture

Add salt and black pepper to enhance the flavor. Mix everything well.

Step 5: Bake the Casserole

Pour the mixture into the greased baking dish and bake for 45-50 minutes or until the top is golden brown and the center is set.

Step 6: Serve and Enjoy

Remove the casserole from the oven and let it cool for a few minutes before serving. Enjoy warm!