depending on your oven and whether the fish was fresh or frozen (check at 20 min to see if it is done) the fish should be cooked through evenlyif done on the bbq, cook on medium heat for 20 min, then check and cook accordingly until done. fish should be cooked through or golden brown if you leave it on for longer.so far its been a hit! let me know if you like it! ask if you have any questions