Preheat oven to 350 degrees Fahrenheit.
In a medium bowl, stir together dry ingredients. Add the Ener-G egg replacers, applesauce, and oil and mix well. Stir in zucchini until well combined. Pour into prepared 9x13-inch baking pan.
Bake for 50-60 minutes at 350 degrees, until knife inserted into center comes out clean. Since ovens vary, it's a good idea to check your cake a little early.
Cool cake completely and frost with your favorite frosting. I recommend the "Chocolate Frosting" at www.hillbillyhousewife.com [1] which is easily veganized by using vegan margarine and non-dairy milk.