Preheat the oven to 350°F. Spray a 9 inch square or 2 quart baking dish with nonstick cooking spray.
In a large bowl, whisk together sour cream, melted butter, egg, pepper, onion powder and garlic powder until combined.
Add corn muffin mix, creamed corn, whole kernel corn, cheese and green onions and stir just until combined.
Transfer to the prepared pan and smooth the top.
Bake for 45 to 55 minutes or until edges are golden brown and center isn't jiggly.
Let cool for 10 minutes before serving. Enjoy!
