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

I have a theory that there is a impossible trinity (like in economics), 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?

Edit: I was thinking more about dishes (or something you put in your mouth) than the raw substances

Some popular suggestions include

  • fruits (in season) and vegetables
  • lentils, beans, rice
  • mushrooms
  • chicken
  • just eat in moderation

Edit 2: Thanks for the various answers. Now there are a lot of (mostly bean-based) recipes for everyone to try out!

Also someone made a community for cheap healthy food after seeing this topic!

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I didn't even know that you can add soy sauce to sweet potatoes!

No, he's wrong. Adding soy sauce to sweet potatoes is forbidden under international law. Straight to jail.

"Savory" sweet potatoes are actually my go-to way of eating them!

I think this is the recipe, or close enough, to what I used to use.

https://www.cookingclassy.com/garlic-herb-roasted-sweet-potatoes-with-parmesan/

edit because the recipe didnt link right :(

You can add soy sauce to anything you want!