It's the Snowpiercer food bar
https://www.youtube.com/watch?v=mKwL5G5HbGA
Some people find him a bit too preachy or wears his heart on his sleeve. However his battles for healthier food in schools is commendable.
I'm hoping that cultivated meat can make itself a viable commercial product. And then there's Air Protein, which should be acceptable to all: https://www.airprotein.com/
There was a study in the 90s wherein the authors sterilized a cockroach and dipped it in some juice. Despite knowing the juice was perfectly safe rationally, most people would refuse to drink it. I find myself in that camp.
People also rejected fudge shaped like dog feces or soup stirred with a brand-new flyswatter.
Have you ever seen the popular Halloween party food "Cat Litter Box Cookies"?
Here's some examples: https://www.cdkitchen.com/recipes/recs/302/Litterbox_Cookies...
https://www.allrecipes.com/recipe/15195/cat-poop-cookies-ii/
In my experience, people don't mind eating them. We served them at a Humane Society event once.