Preheat the oven to 425 degrees F (220 degrees C). Lightly grease a 9-inch square pan.
Whisk almond milk, eggs, coconut oil, and honey together in a small bowl.
Stir cornmeal, cornstarch, sweet rice flour, baking powder, and salt together in a medium bowl. Add almond milk mixture and whisk until combined. Pour into the prepared pan.
Bake in the preheated oven until a toothpick inserted into the center comes out clean, about 20 minutes.