Wash all of the vegetables and pat dry. Slice the cucumber down the middle length-wise. Slice the cucumbers into rounds or half-moon shapes. Toss the cucumbers in a large bowl. Remove the seeds from the green pepper. Slice the green pepper into slices or rounds. Cut the tomatoes into quarters. Peel and cut the red onion in half. Slice into very thin slices length-wise. Place all of the cut vegetables into a large bowl.

In a small bowl, mix together the extra virgin olive oil and red wine vinegar. Add in the capers, kalamata olives, and crumbled feta cheese to the large bowl with the vegetables and generously pour the dressing over the salad. Sprinkle with salt, dried oregano, and mix together.

You can drizzle a little more olive oil on top and sprinkle with more dried oregano. Serve with fresh crusty bread or grilled pita bread to dip into all of those wonderful juices.