Sicilian-style cauliflower gratin

A tasty, easy and inviting side or complete meal.
INGREDIENTS
1 CAULIFLOWER
3 TABLESPOONS TAGGIASCA OLIVES
3 TABLESPOONS DESALTED CAPERS
10 CHERRY TOMATOES
10 ANCHOVIES IN OIL
STALE BREAD
OREGANO
EXTRA VIRGIN OLIVE OIL
SALT
PEPPER
I clean a good cauliflower.I separate small florets, keeping only tender leaves.I wash and boil in salted water for 10 minutes after boiling resumes, keeping firm, then drain.
I arrange in a single layer on a parchment-lined tray greased with oil.I drain olives and anchovies from oil, desalt capers and wash tomatoes.I finely dice tomatoes.I distribute over cauliflower.I add capers, olives and chopped anchovies.I break up stale bread slices.I chop coarsely and mix with a tablespoon dried oregano and oil.I spread crumbs evenly over cauliflower. I add salt and pepper.I drizzle with extra virgin olive oil and bake at 180°C for 20 minutes.