Heat oven to 350 F° (180°C) and fold a 8x8 inch brownie pan with parchment paper or grease with oil.
Grate the zucchini. Once grated, gently squeeze the vegetable without removing all the water. Set aside for later.
In a large mixing bowl, whisk egg with maple syrup, melted coconut oil, almond butter, vanilla extract and a pinch of salt. Once evenly combined, stir the grated zucchini into the egg mixture.
Add whole-wheat flour and baking soda in the wet mixture, then stir to combine.
Gently fold through the chocolate chips.
Transfer the brownie batter to the prepared baking pan and top with more chocolate chips, if you desire.
Bake zucchini brownies in hot oven for 25 to 30 minutes, or until the center has slightly set. Do not over bake brownies, they tend to become firmer once they cool.
Let healthy zucchini brownies cool completely, then remove from the baking pan and slice into 16 pieces.