Put the grated zucchini in a colander, sprinkle with sea salt and allow the liquid to drain for 1 hour. Then squeeze out the excess liquid from the zucchini and transfer to a bowl.
Add a little olive oil to a pan and fry onion until translucent. Set aside and allow to cool.
Add the onion, cheese, breadcrumbs, mint, dill, flour and eggs to the zucchini and mix to combine. Season with sea salt and black pepper.
Heat the oil in a pan. Take 1 teaspoon of the mixture at a time, dip in breadcrumbs and shake of excess, then drop into the oil and cook over a high heat for 2-3 minutes, or until golden brown on both sides. Serve with tzatziki or garlic dip.