Making Corn Casserole with Just 5 Ingredients is straightforward. Here’s how to do it:

1. Preheat the Oven: Begin by preheating your oven to 350°F (175°C).
2. Combine Ingredients: In a large mixing bowl, combine the whole kernel corn, cream-style corn, Jiffy corn muffin mix, sour cream, and melted butter. Stir until well combined and smooth.
3. Prepare the Baking Dish: Grease a 9×13-inch baking dish. You can use butter or cooking spray to prevent sticking.
4. Pour the Mixture: Transfer the corn mixture into the greased baking dish, spreading it evenly.
5. Bake the Casserole: Place the dish in the preheated oven and bake for about 45 minutes, or until the top is golden and a toothpick inserted in the center comes out clean.
6. Cool Slightly: Once baked, remove the casserole from the oven and let it cool for a few minutes. This will help it set slightly.
7. Slice and Serve: Cut the casserole into squares and serve warm.

These simple steps guarantee an incredible corn casserole, perfect for any occasion!