Come up with the something fun, it doesn't have to go huge, like a Murder Mystery Dinner party, but a simple theme to keep your guests loving your party.
Wines from the same region, or pork in every course (gotta love some pig!) or even something as simple and fun as color themed. Plates and dishes all following the same theme are always a hit!
And a Greek, Italian or Mexican inspired party are always and affordable fun party!
Cheers!