Preheat the oven to 375 degrees. Also spray a 9 x 11 cooking dish with cooking spray.
In a large bowl, beat 3 eggs. Add 1 stick melted butter and sour cream. Blend well. Add mexican cornbread mix and blend well. Next add cream corn and whole corn and blend well. Finally add bag of shredded cheese and mix well.
Once all is blended in, pour mixture into cooking dish and place in the oven for 30 minutes. Can check with a toothpick to make sure the center is cooked.