I am throwing a dinner party for 4 people on Friday?

So I am throwing a dinner party and not sure what to make...I want it to be healthy since some of us are watching our weight...I want it to be quick since its right after work and dont have much time to prepare...I did go to culinary school so I am a good cook, but everything i make has a million calories...It needs to be very tasty as my guests are expecting something amazing....
my ideas were along the lines of a moroccan or spanish style theme...i wanted to make a fillet and mushroom kabob with a couscous salad....any other ideas???
i was looking for recipes...and other suggestions on main dishes and sides.

thanks