Preheat oven to 375°F and grease an 8x8" baking dish.
In a large bowl, whisk together the egg and non-dairy creamer.
Stir in the cornbread mix, corn, onion, and any extras.
Pour into the dish and bake for 30–35 minutes, or until the center is set and the top is golden.
Let cool slightly before serving—great with chili or roasted veggies!
