-(optional) Combine the cream style corn, the milk, melted butter or fat, and the eggs in a large bowl. Blend thoroughly. Stir together the cornmeal, soda and salt to blend, and then stir into the liquid mixture, blending thoroughly. Pour half the batter into a buttered 9 inch square pan. Spread with the grated cheese, and the onion if used. Cover with the remaining batter, and if desired, sprinkle with more cheese and onion. Bake in a 400 oven for 45 minutes, or until browned and done. Cool slightly before cutting.