I hate eggplant. But there is one thing I can stomach and that is baba ganoush.
here is a recipe for a roasted eggplant baba ganoush
http://www.thefrontburnerblog.com/2010/12/roasted-eggplant-baba-ganoush.html
What was "the last dish" you made him with it? Was it eggplant parmesan? (if it wasn't he might like it because the eggplant is breaded and fried first?)
http://www.foodnetwork.com/recipes/eggplant-parmesan-recipe/index.html