What if you could only have one kind of food all day?

This is one of those magical scenarios where, for nonsensical reasons, the world is limited in some fundamental way and we explore what that would be like. In this scenario, each day, you can pick one food and have only that all day.

Ideally, it would be healthy and delicious, and you wouldn't get tired of it, and eating nothing but wouldn't make you sick. What kinds of things would you be looking for?

(I'm already seeing there's an issue with what "a single food" even means. Surely a tomato counts. What about classic pizza sauce? What about cheese pizza? What about everything pizza? I don't have all the answers, but remember the point is to play with the idea of the limitation, not just trick your way around it.)

The first few things I thought of were: peanuts, Swiss cheese (but would that make me sick?), celery, multi-grain wholemeal bread, brown rice with pickles, chips'n'salsa, pretty much any soup/stew/chili, porter.

What about you?

I wonder how hard it would be to have a healthy diet with this restriction by just alternating through different foods.

I often eat sort of like this, if there is a large abundance of a particular kind of food. I would rather have as much of my diet as possible come from foraging/gardening than try to save a lot up for the winter, so what I end up doing is as I harvest, I make lots of one particular kind of food. (Never really one food all day though!)

If I go to a nettle patch and harvest a large quantity of nettles, I make nettle soup. I’ve had days in fall of 2024 when I ate little except for apple sauce. In other words, take advantage of abundance so that you can harvest as efficiently as possible and with as little waste or deterioration as possible.

Sometimes it requires more processing than usual though, especially when a food isn’t naturally considered to be highly digestible. It ties in very much with seasonal eating, I think.

i've had a few times in my life when i couldn't eat for one reason or another (jaw wired shut after breaking things, couldn't cook or hold a knife for a while) and got through eating limited diets.
I learned that I could eat banana yogurt shakes, oat/banana smoothies, or apples pretty much all day every day with no problem.
I am a variety kind of person-- once my problems resolved, i was pretty happy to move from apples to a pork chop or a bowl of miso soup. But if the world ends and I can only get one 50 lb bag of something, I'll take oatmeal, thanks, I think I could live just fine on it.

"Eggs are the fruit of the chicken"

I've been on an egg kick lately. If you put a few boiled eggs in front of me with some hot sauce, it is game over. Scramble them, poach them, devil them... it's all good!

A friend of mine made a quiche a month ago that was absolutely divine. Eggs and cheese compliment each other in a fantastic way.

Yeah, some foods are good candidates for this just because they're so flexible. Potatoes and eggs come to mind immediately. or if the item was "salad" and you could make a totally different one for each meal it would be no problem -- but I think that's veering into 'cheating' territory.

I have said before that nettles are a very good food I wouldn’t mind eating for most of my food, too.

I've made nettle soup a few times. Eating it feels good, but I (and more so) my family don't really love it. But I was wondering about variety and found a few options at this thread: https://permies.com/t/44253/Seeking-nettle-recipes