Grilled portobello mushroom caps with tomato, basil, and mozzarella salad

This is a great first course for a dinner party or a great meatless lunch entre. The mushroom caps are drizzled with extra virgin olive oil, salt, and pepper and then grilled for just a few minutes. Meanwhile, the salad of tomato, fresh mozzarella, and basil is prepared with just a little olive oil, a splash of red wine vinegar, salt and pepper. The ingredients may be simple, but the flavours are huge for this showstopping starter. I couldn't stop eating until it was gone....