Prep. Preheat your oven to 375°F (190°C). Prepare a 7.7x5.3-inch baking dish or a small casserole dish by coating it with nonstick cooking spray.
Make the corn mixture. In a medium-sized mixing bowl, combine the drained canned corn, creamed corn, beaten eggs, heavy cream, melted butter, crushed Ritz crackers, shredded cheddar cheese, sliced green onions, and black pepper. Stir until all the ingredients are well incorporated.
Transfer to a baking dish. Pour the corn mixture into the prepared baking dish, spreading it out evenly. Set aside while you prepare the topping.
Prepare the topping. Mix the crushed Ritz crackers with the melted butter in a small bowl until the crumbs are well coated.
Layer the topping. Sprinkle the prepared cracker topping evenly over the corn mixture in the baking dish. Then, sprinkle the shredded cheddar cheese over the top of the cracker mixture.
Bake. Place the baking dish in the oven and cook uncovered for 40 minutes, until the cheese is melted and the topping is golden brown. Check the dish after 30 minutes to ensure it doesn’t overcook, as oven temperatures vary.
Garnish and serve. Once baked, remove the dish from the oven and let it cool for a few minutes. Garnish with additional sliced green onions if desired. Serve warm, and enjoy this creamy, hearty side dish!