Preheat oven to 400 degrees Fahrenheit.

Grease a 9" cast iron skillet or cake pan.

Add the cornbread mix to a large mixing bowl.

In a small bowl, whisk together the milk and honey, until mixed.

Pour the egg mixture into the dry ingredients, add the mashed sweet potatoes, and honey if using. Mix everything until incorporated. Batter may be a little lumpy.

Pour the batter into the prepared pan.

Bake in a preheated oven for about 20 minutes or until an inserted toothpick comes clean.

Serve warm or at room temperature.