Italian breakfast is quite different from American or English. Colazione is usually light: cappuccino (coffee and milk) and a brioche (sweet pastry), or simply espresso (black-short-strong coffee).
Pranzo (lunch) is the big meal except in the industrialized cities. It consists of antipasto (starter) a primo piatto (pasta, rice or soup), a secondo piatto (meat or fish) with contorno (vegetable or salad), then frutta ( fresh fruit). Finish with espresso and maybe a grappa or amaro (strong digestive liqueur).
Cena (dinner) is similar to lunch. Nowadays there is a tendency of having a light lunch, then dinner becomes the major meal.