I make some pretty damn good Tamil-style goat curry, or green Thai curry. If they're afraid of flavor, I make boef bourguingon and fondant potatoes made with duck schmaltz.

If I really care about em, I make Peking or Canton-style duck, a true labor of love, and if they want something sweet, I make one hell of a pumpkin cheesecake with candied pecan topping and Graham cracker crust. Or creme brulee, especially if I have fresh fruit. That always impresses, despite being one of the easier things to make.