I don't do prawns but love all fish. I would not have done a pre cook with fish stuffs. It only takes a few mins to cook any how so youhave a sure danger of it being chewy

If I was doing fish/prawns though I would do extra hot chilli and lots of lime juice with some nice crispythin sliced veg. A bit Jalfrezi style but with a nice light sauce

What are you going to do.....have you decided?