Heat oven to 350°F. Lightly grease a 9×13-inch baking dish.
Melt the butter until just liquid, then let it cool 2 minutes.
Whisk sour cream with the melted butter in a large bowl until smooth.
Stir in the creamed corn and the drained corn kernels.
Fold in cornbread mix, salt, pepper, and paprika until just combined.
Stir in about 1 cup cheddar and the green onions, reserving the rest for topping.
Spread the batter in the dish and sprinkle with remaining cheddar.
Bake 40–45 minutes until set in the center and golden. Rest 10 minutes before serving.
Notes
For a little heat, fold in minced jalapeño or swap cheddar for pepper jack. Want extra color? Add a pinch of smoked paprika on top before baking. Leftovers keep well in the fridge for up to 3 days; reheat covered at 325°F until warm and the cheese melts again.This recipe is an original creation inspired by classic Easy Creamed Corn Casserole Recipe flavors. All ingredient ratios and instructions are independently developed.