Preheat the oven to 350f (180c).
Grease two standard muffin pans. In a large bowl, place in all the dry ingredients, mix them together and then make a well in the centre of the bowl.
In a smaller bowl, beat the eggs together, then add and combine the mashed banana, vegetable oil and vanilla bean paste. Once combined, add them to the dry ingredients, along with the grated zucchini. Mix well.
Spoon the mixture into the prepared muffin tins to 2/3 full.
Bake them for 15-20 minutes or until a skewer inserted into the middle of a muffin comes out clean. If you are baking with two trays, you might like to swap them over after 10 minutes to ensure both trays cook evenly.
Once removed from the oven, allow the muffins to stand in the tray for 5 minutes before taking them out to cool on a wire rake.Enjoy!