in the Murble Table there's a book, inside that book there's a button to get the "Creative Fork".

With the creative fork, utilisable as a book, you can just click on the item name and get it.

But you should also be able to give it to yourself via /loot give \@s loot ulg:murblerecipes/misc/coffee_beans or something like that

also this is a great pack :D

drops grass instead of seed? You probably have silk touch or are using some other datapack/mod/plugin that overrides grass loot table

It's not meat (sushi is made with fish)

It's salmon roe, get it killing salmons