Preheat your oven to 350°F (175°C) and prepare a baking sheet with parchment paper.

Grate one medium zucchini and squeeze out excess moisture using a kitchen towel.

In a mixing bowl, cream softened butter, brown sugar, and granulated sugar until fluffy (3-4 minutes).

Add one large egg and vanilla extract, mix on low until just combined.

In a separate bowl, whisk together flour, oats, baking soda, baking powder, cinnamon, and salt.

Gradually add the dry ingredients to the wet ingredients, mixing gently to combine.

Fold in grated zucchini and chocolate chips into the dough.

Scoop dough onto prepared baking sheet, spacing them about 2 inches apart.

Bake for 12-15 minutes until edges are golden brown and centers are soft.

Cool on the baking sheet for 5 minutes before transferring to a wire rack.