01 - Preheat oven to 425°F (220°C) or adjust broiler to high setting.
02 - In a medium mixing bowl, thoroughly blend corn kernels, sliced green onions, mayonnaise, softened cream cheese, unsalted butter, sugar, salt, and ground black pepper until uniform.
03 - Spoon mixture evenly into a small oven-safe skillet or baking dish, spreading to create an even layer.
04 - Distribute shredded mozzarella cheese in an even layer over the mixture.
05 - Bake or broil for 10 to 15 minutes until cheese is melted, bubbling, and golden brown on top.
06 - Present immediately while hot and creamy.