the otahs there are big and contains alot of fishmeat (from batang/mackeral). its like taking a fillet of fish and adding the spices and paste inbetween as compared to those dried and shrivelled up banana leaf otah wannabes in SG where u get mostly flavouring + spices + shitloads of flour to make that.
u can get those seafood mix ones in MUAR oso ...got prawn, sotong lar, fish blah blah blah
steam it, and it shouldn't be sooooooo super oily. thats the good ones from Muar.
the ones that are okay to taste but not as good are those that leaks shitloads of palm oil when u steam the otah