I'm more into eating

, but consider Hierarchical tags (sorta like cookbooks are organized within)
Russian.Soups
Russian.Breads
Greek.Breads
Also I am of the anti-nukem all camp. Update/Add the existing
(bulk mode will get a workout in part)
Use the tag browser.
It is very powerful
Right click a Tag and see what you can do just to that tag.
(BTW the Tag browser respects active V/L, so you can choose to only
apply to those in the V/L)
Select a Tag in the Tag Browser. See what it gets you
Select all the 'wrong ones' That should be something else
Tap 'E" (metadata edit bulk mode). There you can Add Tags AT THE SAME TIME, remove the wrong Tag (the one that got you there

)
Repeat, Spin, stop and make one of the dishes once in a while