1. Preheat oven to 350°F (175°C).

2. In a large bowl, combine the tomatoes, onions, garlic, oregano, salt and pepper.

3. Add a splash of water and mix well.

4. Place the ciabatta bread on a greased baking sheet.

5. Spread the tomato mixture over the bread.

6. Sprinkle herbs and drizzle oil over the top.

7. Bake for 15-20 minutes or until golden brown.