I adapted this recipe from http://www.texanerin.com/2013/08/chocolate-zucchini-brownies.html/comment-page-1#comment-22729
This recipe uses whole wheat flour and no refined sugar. It definitely isn't as sweet as some of the things I bake, but the kids ate it right up and requested more.
1 Tablespoon Vanilla
1/2 cup honey
1/4 cup applesauce
1 cup whole wheat flour
1/2 cup cocoa
1 1/2 teaspoon baking soda
1/4 teaspoon salt
2 cups peeled and shredded zucchini
1 cup chocolate chips
1/2 cup chocolate chips to sprinkle on the top
Start by mixing 2 eggs, 1 Tablespoon vanilla, 1/2 cup honey, and 1/4 cup applesauce with a fork.
In a separate bowl mix 1 cup wheat flour, 1/2 cup cocoa, 1 1/2 teaspoons baking soda, and 1/4 teaspoon salt
Add the dry ingredients to the wet ingredients. Don't over mix. Fold in the zucchini and chocolate chips. Pour in a greased 8x8 inch pan. Spread chocolate chips on top of the batter.
Bake at 350 degrees for about 40 minutes.