I’ve categorised this post as “eating in” but arguably it should be “eating out”!
Take one box of store cupboard items that are versatile enough to be used a few ways each; mustard, mayonnaise, cocoa, peanut butter, honey, marmite, ketchup.
Between all of these you have various choices what to put on bread or toast, the makings of salad dressings and pasta sauces. I tend to buy a small bottle each of olive oil and vinegar when I get there….