Lately I just use tortillas for the base. Better toppings to base ratio. Near zero effort. Mine looks more like: tomato paste, shredded cheese, garlic, pre-sliced chorizo, salami or pepperoni. Optionally portobello mushrooms. I use a "pizza flavouring" mix, which is just oregano, basil and marjoram, or if I'm out of that, I probably have basil and might have oregano.

In this recipe, the only thing I need to slice is the garlic, which I get from my own garden when possible, otherwise I try to find Estonian garlic since the Chinese stuff tends to taste weaker (not always though). Even the mushrooms can be bought pre-sliced. I don't always add them because I love them, but not every else does and honestly if I'm trying to get by on the cheap, that's 2 or 3 euros I can do without. Ananas is also strictly optional and I never add it myself, mostly because I forget it exists in cans and cba to buy a whole one and dice it lol

But my original comment of "I want to spend zero time preparing food today, what should I get?" mostly referred to the sort of day where I don't even want to go to the store or turn on the oven. I don't get them a lot anymore, which is why I only get pizza from a pizzeria like 2-3 times a year these days.

If your population was being hunted for food, would you rather have the hunters eat all of their kill, or only part of it? Keep in mind that in both scenarios, their energy needs are the same.

Still seems more wasteful than preserving it for use later to me.