i generally find courgettes pretty boring, as veg goes, unless they are fried, preferably in batter. but batter would involve flour so maybe not.
a heavy griddle pan is pretty good for this kind of thing. slice the courgettes lengthways into strips around 1/2cm thick. brush the pan with some olive oil and griddle in batches until cooked. you can eat courgettes raw so it doesn't matter if you undercook them but i do think this is one veg that tastes so much better (and so completely different) cooked properly. when done, lay them on a plate and season, then sprinkle with finely chopped parsley and red chilli. pour some very good olive oil on top. it's also lovely with milky cheese like mozzarella. you could also sprinkle some nuts on top - i was thinking chopped pistachios.
i make this from about 3 courgettes so i have enough left over for lunch boxes.