Have passed through MEL lounge for breakfast a few times in the last couple of weeks. They've had a hybrid of self-serve and counter service....but all from the same counter.
As an example, on Sunday, enter the line from the end closest to reception. First up is a chilled cabinet with the usual yoghurts, cereals, fruit etc. all requiring a server to hand you your selection. Next up was an open platter of pastries to self serve. Then on this occasion the server has dishing out smashed avo, followed by bacon which was self-serve. Whereas it had been the other way around when I passed through a couple of weeks ago: bacon served, avo self-serve. So I'm not really sure what the deciding factor is on whether something can be self-serve or not.
Have also seen baked beans and potato rosti on high rotation for breakfast in MEL. And the pancake machine has made a return, self-serve.