Cook the kritharaki in well salted water until just tender then drain and cool.
Whisk olive oil lemon juice lemon zest garlic oregano salt and pepper in a large bowl.
Add the cooled pasta tomatoes cucumber onion bell pepper olives parsley and mint.
Fold in the feta gently so it keeps some soft chunks.
Taste and adjust with more lemon salt or pepper.
Chill for twenty minutes for the flavors to meet then serve.