Preheat the oven to 200 C. Sprinkle the ciabatta with olive oil and put into the oven until they come out golden and crispy.
In the meantime cut the tomatoes and the cucumber in pieces, get the pits out of the olives and cut them smaller if that's what you prefer.
Put the ciabatta in a plate, sprinkle liberally with the olive oil and add the cucumber, olives and tomatoes on top. Sprinkle some oregano over it and crumble some feta.
To finish it add some more olive oil and more oregano and dive in!