Sweet, creamy corn casserole baked until golden is a simple vegetarian family side dish for holidays and potlucks. This comforting classic uses just a few ingredients to create a crowd-pleasing, custard-like dish.
Preheat the oven to 350°F. Prepare an 8x8-inch baking dish by lightly greasing it with butter or nonstick spray.
In a large mixing bowl, combine whole kernel corn, creamed corn, sour cream, melted butter, and corn muffin mix. Stir until just blended.
Add the eggs, salt, and black pepper. Mix gently until the eggs are fully incorporated but do not overmix.
Pour the batter evenly into the prepared dish, smoothing the top. Let it rest for 5 minutes to settle.
Bake uncovered for 45–55 minutes, or until the center is set and the top is golden brown. Allow to cool for 10 minutes before serving to achieve a custard-like texture.