Preheat the oven to 375°F. Grease a 9x7-inch baking dish.
In a large bowl, stir together the creamed corn, drained corn kernels, Ritz crackers, eggs, cheddar cheese, and black pepper.
30 ounces canned creamed corn, 15 ounces canned corn kernels, ½ cup crushed Ritz crackers, 2 large eggs, 1 cup freshly shredded cheddar cheese, ¼ teaspoon ground black pepper
Pour the mixture into your prepared baking dish.
In a medium bowl, stir the remaining Ritz crackers and melted butter until combined.
½ cup crushed Ritz crackers, ¼ cup unsalted butter
Sprinkle the cracker mixture over the top of the casserole.
Bake for 35-45 minutes, or until the topping is golden and the casserole bubbles along the edges. Let cool for 5 minutes before serving.