Where Taste is Never Compromised. OPA! of Greece is a truly Canadian Greek restaurant franchise. Since 1998 OPA! of Greece has always been about one thing. Great tasting Greek food. Well, that's not all we're famous for. There's also the quick service and the energy of the fun loving staff. But at the end of the day, it's a taste of Greece that can't be beat that keeps people coming back to our restaurants!