Preheat oven to 350 degrees. Line a baking sheet with parchment paper and set aside.
In a mixing bowl, combine the flour, soda, salt, cocoa, and sugar. Mix well to combine and set aside.
Grate the zucchini then drain off excess liquid before adding to the mixing bowl.
In a large mixing bowl, combine the oil, applesauce, vanilla, egg, and zucchini. Blend well, then gradually add the flour mixture in small amount just until combined. Gold in the chocolate chips.
Drop by the spoonful (about 1 tablespoon) onto the parchment-lined baking sheet. Flatten mounds slightly with a fork and bake for 12 minutes, or just until firm. Let cool and enjoy!