Preheat the grill
Beat the eggs with fork in a bowl, add the grated parmesan and season
Slice the courgette into thin rings
Heat the oil in a frying pan and sauté the courgette for a minute or so
Pour in the egg, let it spread out evenly, then turn to low heat and cook for a few minutes.
Cut the feta into small cubes.
When the omelette starts to set around the edge, but is still wet in the middle, add the olives, feta and herbs
Put the pan under the grill for about 5 minutes, until the egg is cooked through and the cheese is golden brown.
Cut into wedges, serve.