For the slimmer eggplants I usually make a sliced eggplant/potato Punjabi dish for my parents or sometimes masala stuffed baby eggplants cooked in a similar base . I really only like eggplant in bhartha or Thai sliced basil eggplant over rice but I don’t cook that one. For the single eggplant you could just slice in rounds, rub with preferred spices (garlic salt, pepper, etc) and simply sauté in a pan until crispy/caramelized.