Starter inspiration please

I'm going to a 'pot luck' dinner on Saturday. I had been asked to make a starter and had been planning to make thai fishcakes but have just received further instructions that somewhat take the 'luck' bit out of it and am drawing a bit of a blank...

- for 6-8 people
- mediterranean theme
- no fish or seafood
- easily assmbled or heated through once we get there

I want to show that I've put a bit of effort in so have made something rather than just putting some stuff together on a plate (when I think mediterranean starter I think caprese salad, melon and prosciutto, antipasto).

I suppose I could make a soup but am finding that idea rather uninspiring. Any thoughts?