Unfortunately things here in Bucharest are pretty much getting there, maybe not in the range of 40-50$ per person but most definitely in the 35-40$ range, and I'm talking a regular restaurant. Before the pandemic I'd say that that price was in the 20-25$ range.
Though I can see how prices in cities like Belgrade, Sofia or Skopje might still be lower, as even Athens is now cheaper than Bucharest when it comes to eating out (I've experienced that myself recently), in which case enjoy it while it still lasts.