I love, love, love eggplant/aubergine Parmesan. I also have a recipe, somewhere, for a lasagna-like recipe substituting eggplant for the noodles. Oh, so good.
Eggplant can be a very versatile veggie.
Boiling - or even steaming - would be my very last cooking choices for aubergine/eggplant. Other than those two, this versatile vegetable can be happily & tastily baked, roasted, broiled, fried, stirfried, sauteed, etc., etc., etc.