Wash the romaine lettuce and tear into bite-sized pieces.
Cut the tomatoes into rough chunks and add to the lettuce.
Using a fork, score grooves into the cucumber lengthwise and then slice.
Cut the red onion into half and then slice thinly, breaking the pieces up into individual curved strips.
De-core the pepper and cut into strips.
Combine and mix all the above ingredients in a large salad bowl.
(It's easiest to just use your hands!)
Remove the pits from the olives and scatter them over the mixed salad decoratively with crumbled chunks of feta cheese.
Sprinkle with dried oregano.
(For most tastes there should be no need to add salt, as the feta and olives are quite salty.)
Serve with a red wine vinaigrette, or your favourite dressing.