If you don't like Belorussian food, then try this Spanish restaurant where you can have a pretty decent paella made by a Cuban chef. Perhaps you can even meet some of the few Spaniards who live in Minsk.
This is a marvellous place with wonderful music, which is live after 11:00 pm. It serves international food. The only downfall is the small dance floor and the fact that you have to make reservations in person. It's very affordable. I