Peel the cucumbers thoroughly from the skin and cut into large semicircular slices. Fold in a deep salad bowl or a wide bowl in which it will be convenient to mix.
Cut tomatoes into large slices. Add to the salad bowl to the cucumbers and mix. At the same time, it is best to stir the Greek salad with your hands, adding a little olive oil at each stage.
Peel green peppers from seeds and membranes and cut into large cubes. Add to salad bowl. Stir with other vegetables.
Cut red onion into thin half rings, and then divide by hand into thin petals. Transfer to other vegetables, mix everything again.
Add pitted olives to the salad bowl (you can buy olives that have already been removed from the pits, or you can peel them yourself by crushing each olive with the flat side of a knife and taking out the bone).
Cut solid feta with a sharp knife into rectangular slices 1 cm thick. To prevent cheese from sticking to the blade, you can pre-dip the knife in warm water.
Mix the vegetables in the salad bowl again and arrange on the plates. Place two slices of feta on top of each serving. Pour olive oil generously.
Lightly salt the salad and sprinkle with dried oregano. Top again drizzle with olive oil and serve immediately, until the vegetables are allowed juice.