Is there a food that is cheap, delicious and healthy at the same time?

https://lemmy.world/post/461059

Is there a food that is cheap, delicious and healthy at the same time? - Lemmy.world

I have a theory that there is a impossible trinity (like in economics [https://en.wikipedia.org/wiki/Impossible_trinity]), where a food cannot be delicious, cheap and healthy at the same time. At maximum 2 of the 3 can be achieved. Is there any food that breaks this theory? [https://lemmy.world/pictrs/image/a523e85e-1280-4932-ae09-8b4b45cd7f4c.jpeg]

Tinned tuna. Inexpensive, high in protein and fish oils, low in fat and calories.

Probably not great in huge quantities because of iodine, but generally very healthy

I know tinned tuna is supposed to be good in macros, but I don't know if they're that delicious. Always tastes a bit too fishy for me. But there are like canned tuna in tomato sauce and those are quite good - tho i suppose it's less healthy because of the sauce
Getting too much mercury seems like it would be more of a concern than too much iodine.
dunno about elsewhere, but the EU (and still be default the UK) has pretty strict regulations on mercury levels. In white tuna its a concern, but skipjack which is the bulk of canned tuna, its not an issue (if you are in the EU)