Boring but we go something like this if eating from stores...
Not exactly detailed but this is how I decide what to can & how much by assigning one main ingredient (e.g. can of mince) deciding what we will make with it then making sure I have the things to turn it into a meal.
Breakfast - usually porridge/instant oats & yoghurt.
Eggs if available.
Have muesli & Weetabix but they are milk dependant so less of those than porridge.
I do have dried milk & quite a bit in the freezer.
Lunch - soup or sandwich or both on hungry days. Often salad as I grow it year round in the kitchen.
I have sandwich spreads, cheese, bacon, pates, corned beef, tinned fish etc... which we can choose for sandwiches.
Or stuff like beans/spaghetti to go on toast.
Omelettes if have eggs/ maybe pancakes if have milk.
Jarred fruit if we feel like it
Main meal: (when I say jar I'm talking about home canned, very different to tinned bought in shop)
Day 1: Jar of minced beef or lamb turned into either stew/burgers/bolognaise/chilli/meatballs/taco/cottage pie whatever so plus appropriate extra ingredients depending which recipe we feel like.
Day 2: Jar of chicken turned into either curry/stew/pie/salad if warm weather with rice or potatoes depending.
Day 3: Meat free meal, if it's a Sunday, might have a meat free roast which is roast potatoes, mash, veggies, stuffing, Yorkshires & gravy - so everything but the meat (son doesn't like roast meat)
Another day might be jacket potatoes or stuffed roasted peppers & rice
Day 4: Jar of sausage, turned into either toad in the hole/sausage casserole/sausage inna bun ;-)/sausage & mash
Day 5: Jar of mince, turned into another option from other mince day or jarred gammon perhaps.
Day 6: Jar of diced pork or diced beef turned into curry/pie/sweet & sour pork by using jar mix/casseroles with dumplings - adding jarred veg
Day 7: Random other tinned stuff in the cupboard bought from shops e.g. I have tinned haggis which we might have for a change, or tinned duck, irish stew, pasta sauce & pasta. Got other stuff but can't remember it all off the top of my head. I have less of each of these items stocked than I have my own home canned stuff.
Snacks:
We have popcorn, biscuits, fruit, dehydrated stuff like cucumber or banana which is very snackable & I have a few jars of pie fillings so can make those or cakes if we're in the mood.
I do also have 2 freezers full of other things you can't really can like joints to roast for instance or boiling bacon & I prefer frozen fish to tinned as I aim for 21 different meals so nothing gets too boring, but this is 7 days from the shelves.
I make my own bread, bacon, ham, yoghurt etc... & have considerable stores to be able to continue to do so.