Salads in Italy are different from many of ours here, as they do not use salad dressings like we have in so many varieties.  Instead, they are delicately drizzled in extra virgin olive oil and maybe some lemon juice or a good vinegar.  With such fresh, seasonal ingredients, it works nicely.  The sweetness of the almost licorice tasting fennel combined beautifully with citrusy oranges and slightly salty olives.  Spicy olive oil was the perfect finish.