Preheat your oven to 350°, In a large bowl, I use my stand up mixer and beat sugar and oil on medium speed for about 1 minute, then add your eggs, applesauce and vanilla; beat 1 minute longer. In another bowl combine the flour, cocoa, baking soda and salt; add this to your sugar mixture alternating with the milk and beat until just about blended. Fold in your zucchini.
Put the cake batter into a greased 13 inch by 9 inch baking pan. Bake for 20 minutes, sprinkle the chocolate chips all over the top, use as much as you would like but not the entire bag, I used about 3/4 of the bag, and then sprinkle the pecans all over. Bake for an additional 10 to 15 minutes or until a toothpick inserted near the center come out clean. Cool on a wire rack.