In a large bowl, combine chopped tomatoes, cucumber, onion and
parsley. Sprinkle with olive oil and toss. Add lemon juice, salt
and pepper to salad and toss again. Serve immediately.
You can also add sweet or hot peppers, scallions or mint so long
as all four of the primary ingredients are there.
Depending on what part of the world you're in this might be called
Israeli salad, Arab salad or Palestinian tomato salad.