Preheat oven to 180 degrees celsius (fan-forced). Grease a 23cm x 13cm (approx) loaf tin and set aside.
Chop the zucchini into thirds and place into the Thermomix bowl. Grate by pressing Turbo 5-10 times (or until finely grated).
Add the greek yoghurt, coconut oil, vanilla extract, egg, and honey and mix for 5 seconds on Speed 3. Scrape down the sides of the bowl and repeat for a further 5 seconds.
Add the flour, bi-carb soda, baking powder and salt and mix for 5 seconds on Speed 4 ( or until just combined).
Fold the chocolate chips gently through the mixture with a spatula.
Bake for 40 minutes (check after 30 minutes). The bread is ready when a skewer inserted into the middle comes out clean.
Allow to cool before slicing.