Recommend to check out Mediterranean countries for recipe ideas. My go to is Moussaka which I believe is originally Greek. It involves slicing the eggplants into 1 cm thick slices - sometimes recommends salting/rinsing/draining before frying (ostensibly to remove the flatulence factor) but I usually just slice, brush with oil and grill, to no ill effect! Then the slices get layered with a flavoured mince mix, and whatever else, (perhaps potato) and topped with a cheesy white sauce that includes an egg, then baked in the
oven. Quite a performance, but it's worth it. It's a bit like a
lasagne, but veggies instead of pasta. Need I say, I'm not a purist
https://www.recipetineats.com/moussaka-greek-eggplant-beef-bake/#wprm-recipe-container-19656
There are also recipes for curries, char grilled eggplant and baba ghanoush (eggplant based dip) sometimes called eggplant (perhaps where the flatulence rumour comes from?) so that's worth a look too.