Preheat oven to 425°F. Stir together cornmeal mix, sugar, and pumpkin pie spice in a large bowl; make a well in center of mixture. Whisk together eggs and next 3 ingredients; add to cornmeal mixture, stirring just until moistened. Spoon batter into a lightly greased 9-inch square pan.
Bake at 425°F for 35 minutes or until golden brown.