Drain the whole corn kernels, melt the butter, and finely chop the green onion to prep.
In a large mixing bowl, combine the corn, cream corn, jiffy mix, sour cream, melted butter, and half the green onions (1 tablespoon).
Season with cayenne and generous sprinkle of salt and pepper. Stir to combine.
Spoon into a 9x13 baking dish that has been lightly coated in butter or sprayed with nonstick spray.
Bake at 350°f for 35 minutes.
Top with the shredded cheddar cheese. Then bake for another 5-8 minutes until the cheese is completely melted and starting to bubble.
Remove from oven and top with remaining green onions. Serve warm.
Notes
I prefer to use "no salt added" canned corns and unsalted butter so I can then control how much salt I add to this dish. If you don't use these, be sure to omit any added salt before baking.