Preheat oven to 375°.
Combine first 6 ingredients in a medium bowl; make a well in center of mixture. Combine water, egg substitute, and oil; add to flour mixture, stirring just until dry ingredients are moistened. Stir in cheese and green chiles.
Pour batter into an 8-inch square baking dish coated with cooking spray. Bake at 375° for 30 minutes or until golden. Cut into squares, and serve warm.