Always have chopped onions, chopped garlic, chilli and ginger, lemon/ lime slices which I use in drinks, and frozen veg - peas, spinach, sweetcorn, butternut squash chunks and broccoli usually. Currently got mini corn on the cobs as DD is mad for them, but I probably won’t get again as I didn’t think they were that nice. Also berries/ smoothie mixes which l use in overnight oats, to cool down DD’s porridge or blitzed with a stick blender with Greek yoghurt as it tastes a bit like ice cream!
Almost always frozen prawns - use either in a curry or for lemon prawn pasta/ orzo.
Bread/ bread products of some kind - bagels and potato cakes currently.
Usually oven chips, veggie sausages and some fishfingers too.
Ready roll pastry.
Another thing there’s almost always there are porridge muffins (as in leftover porridge with added extras like dried fruit or grated apple or ground nuts, baked in a silicone muffin tray). But they’re only really edible to toddlers - or mine at least seems to love them. Also usually savoury muffins of some kind -Smokey chickpea and courgette usually. These were a weaning discovery from a ‘what mummy makes’ cookbook but we all really like them and they make a really good standby for lunches or snacks.
The rest varies depending on if I’ve spotted any good offers, or what we’ve been cooking. There’s usually some portions of soup, chilli, cottage pie, dhal, stews etc in there - usually vegetarian version but occasionally meat for DD and DH. Then some elements of meals where I’ve made extra and frozen it - mash, parsley or cheese sauce, tomato and hidden veg pasta/ pizza sauce - that kind of thing.
My friend makes a whole loaf or two of sandwiches (cheese) then takes some out every night for work the next day or for kids school lunches (think the children get more variety but she always has cheese and pickle) She says they’re fine; but I’ve never been able to bring myself to try it!