Cold hardy perennial vegtables

I have seen a good number of perrenial edibles that are cold hardy and safe to grow in my zone (zone 4b Ontario Canada relatable climate zone 3 in USA)  and i would love to get a longer list.. so far i have  a few in mind aka sea kale, asparagus, sorrel, good king henry, sweet cicely, lambs quarters, sunchoke, ground nut, mint, borage, carraway, chives, ramps, walking onion, various stone crops, lemon balm all of these are great but would love to get more ideas if any suggestions are out their let me hear them i would appreciate the feedback..thankyou

Hi Jordan, are you after vegetables per your title or just any food that is zone 3 (USA) capable?  In the veggie department the only substantial one I'm thinking of is rhubarb.

I guess anything eaten as a green or anything herbaceous that is good for snacking or salads or recipes ect

This thread might help:

https://permies.com/t/4408/perennial-vegetables-Zone-Alaska