1. Preheat oven to 375°.
2. Weigh or lightly spoon flour into a dry measuring cup; level with a knife. Combine flour and next 5 ingredients (through salt) in a large bowl. Combine egg substitute, milk, butter, and honey; stir with a whisk. Make a well in center of dry ingredients; add milk mixture. Stir just until combined. Spoon into a 9-inch baking pan coated with cooking spray.
3. Bake at 375° for 35 minutes or until wooden pick inserted in center comes out clean. Cool in pan. Cut into squares.