Hi folks! On Friday, some friends are coming over to play Unfathomable, a board game set on a boat in the Cthulhu mythos, so I thought it would be fun to cook something with a bit of a seafood / ocean taste. Only catch: I'm vegetarian, so no fish.

I'm looking for inspiration for something that might have this sort of flavor. So far, I've thought about something using wakame or nori sheets, but although I do have experience cooking Chinese and Japanese dishes, I couldn't think of any sort of full dish that might have the right taste.

I'm aware that there are vegan "fake salmon" or "fake tuna" things that you can buy, but I haven't been too impressed with those so far.

Any thoughts?