Wash oregano, shake dry and pluck off leaves. Spread oregano and 3 tbsp. oil on the feta, cover and chill for approx. 30 minutes. Roast pumpkin seeds in a pan without fat. Take them out and let them cool down.
Remove the broad beans from the pods and blanch them in boiling salted water for about 4 minutes. Drain, rinse and carefully press the beans out of the skin.
Wash the cucumbers, cut them in half lengthwise and scrape out the seeds with a tablespoon. Cut the cucumbers into slices. For the dressing mix vinegar, salt, pepper and 1 teaspoon sugar. Fold in 3 tbsp. oil.
Mix dressing with bean seeds and cucumber. Covered and let stand for about 20 minutes.
Season salad with salt and pepper. Arrange in a bowl. Spread the feta cheese on the salad. Serve sprinkled with pumpkin seeds.