Your viable alternative is on the way
https://www.fastcompany.com/40559474/this-salmon-burger-tast...
Disclaimer: I am a cofounder of this company, we have recently rebranded to Prime Roots from Terramino
https://www.fastcompany.com/40559474/this-salmon-burger-tast...
Disclaimer: I am a cofounder of this company, we have recently rebranded to Prime Roots from Terramino
A lot of these products are only available in the States, I find. Aspiring vegetarians and vegans down under have to wait.