Ok stuff on toast is great for tea one night, be it scrambled egg, beans etc,
Get a slow cooker, sling in cheepo chicken thighs, any chicken on the bone is cheeper. I buy a huge turkey leg and slow cook that, the meat litterally falls off the bone, made a curry one night then sandwiches with left overs the day after.
meal plan meal plan meal plan your arse off.
shop ONLY for what is on your list.
Make BIG batches of stuff like corned beef hash, curry, spag bol etc then keep some back, freeze it and you have a "free meal" the following week.
I make a big cake once a week, and that lasts as a treat.
buy bread on offer then freeze, get out slices as you need them, same with crumpets, bread rolls stuff like that. there is not nearly as much waste.
i can feed us for between £30-£50 a week, but there are 3 of us, no pets etc and i am very very strict.
i buy crisps as treats, when they are gone, they are gone...and only those on offer. and only one multi pack.
buy loads of supermarkets own brand stuff, try it, its just as nice as the comercial brands.
this time of year we have been blackberry picking, and i have a freezer full, also wind fallen apples from next doors garden. I have stewed them and again frozen them, this will mean puddings all winter. (crumbles/pies etc)
I make my own pastry and by the cheap flour etc, lasts for ages.