Yep, I’m well aware that I’m privileged. I’m concerned about the world my kids will live in as they grow up.

This sounds like retirement.

Source: am retired

We keep a list of possible meals. Just favourites we’ve gathered over time. Once a week we sit down as a family and work out a series of meals for the upcoming week. Then it’s simple to work out what we need to get vs what we have already and do a shopping list on a whiteboard we keep for the purpose. Easy enough to mark items for purchase later (eg buy fresh closer to when we need them), or add staples as we run out. Whoever is doing the shopping just copies down what’s on the board before they go.

Takes maybe an hour to do as a family, gets everyone involved in and involves the kids in family decision making.

The YouTube channel The Tim Traveller has covered a few (along with a bunch of other esoteric sights, I really enjoy his stuff).

Example: https://youtu.be/iXSkjw0Kytk?si=J_X-3rbCluOcXRyz