We don’t really like tin pre made food. So I wouldn’t stock it. Ie pre made soup. But do have tins of ingredients ie tin tomatoes, beans.
We live rural and get snowed in most years.
We have a bbq that can run off coal or wood, and fire pit with grill plate. Kettle and cast iron pan for bbq or fire pit.
Our freezer always has basics in. We have sausages that would grill easily, and homemade portions of curry, bolognese, goulash , soups. These we eat regularly anyway so freezer always has a rotating supply of things as they get used and replaced ( I always make for example 4 family portions at a time, eat 1 and freeze the rest for easily nights).
I figure in power outage we would just work our way through freezer. Most things would be fine to eat for up to a week after powder off as would eat certain things first, the freezer would stay cold at least 24-48hrs still, and in winter it’s freezing outside anyway so I would just decant into cool box outside. All these would easily warm on bbq in cast iron pan or on grill.
I also keep flour and dried yeast. - could make flat breads easily and pan cook. We grow own potatoes/ pumpkin/ squash, so these are generally in storage here over winter ready to use. Bake potatoes on bbq pretty low maintenance
Granola, oats, uht milk, vacuum pack rye bread, cashew butter, jam, marmite. Dried fruits and nuts. We always have cheese in also which again is fine not in fridge, just cold place for ages. So porridge/ granola/ bread with toppings is filling and easy without cooking if needed
Glühwein and spiced apple juice stocked - for winter in general. But in emergency life would be nicer and warmer with a hot gluwein, and eating the goulash from freezer. Usually have part bake bread rolls in freezer also - these last weeks unfrozen so would just use over time. Bake on bbq.
Generally always have a least a spare of day to day basics like toiletries, cleaning stuff, sugar, tea, snacks etc.. so in supermarket closed a few days senario no huge rush. If supermarkets opened after a few days on restrictions then it’s only fresh things that would be nice to have really.
Basically this is normal prep here. For normal it’s cold or snowy or we are sick and can’t get anywhere 2-7 days. Or power fails after storms. No apocalypse scenarios.
we also have grayl water filter bottle and spare filters we bought for Asia travel, but handy in emergency. There’s stream 5 mins away and snow in winter, so would melt and filter.