I can only give you part of this recipe because the cheese/mint filling was already inserted into the frozen filled zucchini flowers when I was helping GM.
The batter uses half flour and half cornflour and the liquid is beer. Only use enough beer to make the batter smooth. Drink the remaining beer. Don’t waste it!
Use a small saucepan with frying oil to lightly fry the batter dunked zucchini flowers and drain them on paper towel.
Serve warm with lemon juice. How else would you dress a Greek dish? (rhetorical question) :))