I consider fish a meat...Eggs have the highest "complete" protein percentage in them and by complete it means that the protein has all the needed amino acids that the muscles require
Now incase I mistated it... you dont have to eat lots and lots of protein to gain muscle but check any weightlifting book or trained..Basically you need a balance of meat and healthy carbohydrates such as rice...but besides that face it..if you wanna get big or whatever your going to eat healthy meat (fish,chicken ect) sooner or later
If my last post sounded offensive..my apologies