This pie is named 'the omega' because it contains fish that are rich in omega oils. It is also unusual because it doesn't use pastry as a top crust but instead uses a polenta soda bread mix.
I used the polenta topping on my own fish pie recipe and it turned out great! My partner was v skeptical but loved the end product. I used only about 20g sugar and sprinkled some grated cheddar on top, both of which I think I'll omit next time (not sure why the original recipe contains so much sugar!) - 06 Nov 2016 (Review from Allrecipes UK & Ireland)