Persian/Shirazi salad, which is basically just cucumber (seedless), tomato and red onion diced up. Then you toss it with a little lemon or lime juice and a little olive oil. I quite often throw in a bit of crumbled feta too. I rarely have lime juice on hand so I use the lemon juice but I go easy on it. Most recipes call for parsley or mint but I don't add either of those.