@halfsiesonapotnoodle
I think boiling up stock from these bits is a false economy. The lengthy heat you need for a chicken carcass etc will cost far more than buying a cube or using bouillon powder. That's why I just don't bother.
But it doesn't need anything additional. It just goes in the oven when something else is cooking. Or in the sloco.
We keep every on your list plus soft tomatoes and peppers for soup.
Onion skins and rooty bits to put under a roast - the skin turns the juices a nice gravy brown.
Overripe bananas for banana bread.
Bread for breadcrumbs. I manage to forget them for long enough to make a couple of tarts. Always have stuffing balls for Sunday.
If we have mozzarella, feta, any cheese really, we keep that too. It all goes well with Mediterranean veg or in a moussaka or lasagne.
I keep leftover Sunday lunch meat and chop it up small for chilli or Bolognese.
We have one deep drawer that we put all our odds and ends in. There are only the two of us, so we often save half a something. It means we can usually eat out of the freezer or finish a meal out of it.
For example tonight we are having tacos. I have bought guacamole, salsa, sour cream, spring onions, lettuce and cherry tomatoes. We have taco shells double bagged in the biscuit box (also keeps ginger baskets and ice cream wafers well for ages), half a tin of refried beans and taco beef in the freezer.
The leftover salad and salsa stuff will keep until Monday, when I'll make quesadillas, with the tortillas that are in the freezer.
Thinking about it I also have one more portion of chocolate brownie in there. We can have that, warmed through, with ice cream and some soft fruit. A whole pudding from the freezer without having to think about it.
And rhubarb. I always have rhubarb, often given by people with a plant that is too big for them. Stewed down in orange juice, no added sugar, it goes well in sweet or savoury dishes. I freeze it flat so I can snap bits off. Defrosted and stirred through yoghurt 🙂.
There is probably more, but I'll sound like a prepper!!