[Shamanmuni]

Yes, picadas (which means chopped in Spanish) are pretty common in Argentina and people usually drink beer with them. You can order them at pubs and they are something standard in social gatherings.

But I think mezze includes more elaborated food; the typical picada includes cheese, cold cuts, olives, peanuts, bread, snack food and that's it. The things served are more similar to the italian antipasto, but the way of serving them (many small dishes distributed over the table) resembles the mezze.