Cut the mozzarella and lemons into wedges and add to platter.
Place mushrooms and olives in bowls.
Slice or tear the ciabatta (or allow your guests to do so).
Try the mozzarella with a little olive oil and pepper or lemon.
Try the ciabatta dipped into a little olive oil or optionally olive oil and balsamic vinegar.
You can offer your guests, small forks with which to pull the roasted garlic cloves out of their skin or you can do this beforehand for your guests. You can even mash them into a paste and offer this as a spread.