You could toast/grill it and top it with tapenade-olive paste. Or chopped tomatoes, basil and a drizzle of olive oil. It's a great accompiament to pasta and rissotto because it's made with olive oil anyway.
If you're just serving ciabatta, a delicious thing to have with it is olive oil, salt , fresh ground black pepper and a little lemon juice. :) You can eat loads of it this way, without even to have anything accompanying it!
Agree with the above. But add a really good quality balsamic vinegar to the salt and olive oil. A small pool of decent olive oil with some balsamic vinegar drizzled in looks nice as well. Then just dip the ciabatta. Lovely.
I love a ciabatta roll cut in half, drizzled with a little olive oil, a piece of goats cheese put on top and then cooked in a medium oven for about 7 - 10 minutes until the goats cheese starts to go runny.