In a large mixing bowl, whisk together the drained zucchini, maple syrup, melted coconut oil, eggs, almond milk, and vanilla extract until well combined. SECRET #2: Let the melted coconut oil cool slightly before adding to prevent cooking the eggs.
In a separate medium bowl, whisk together flour, baking soda, salt, cinnamon, and nutmeg until evenly distributed.
Add the dry ingredients to the wet ingredients and gently fold together using a rubber spatula until just combined. SECRET #3: Don't overmix - stop as soon as you no longer see dry flour streaks to ensure tender texture.
If using add-ins, gently fold in nuts, dried fruit, and seeds until evenly distributed.