Bag of frozen mash about £1, bag of SR flour about 50p, mix heated up mash(follow cooking instructions on bag) with flour until like a dough, roll out like scone dough & cut into rounds/squares/whatever takes your fancy, fry on a pan with a teaspoon of oil (if you have no oil you can still cook them but they just don't ever seem to go golden brown) - takes a few minutes so low energy costs to produce.
Hot, filling basic potato cakes & that much mash would do you 3 or 4 days if you had to.
You can add whatever you want to them if you have it, e.g. 1 slice of finely diced bacon would flavour them enough for a batch to feed 2 people.
Too much bacon actually spoils them.
You can grate cheese over them if you have any, or just dab butter/marge on the top - that's how we prefer them.
If you have something like a tin of irish stew (value one is about 75p)to dip them in you could serve them plain, otherwise a bit dry without a dab of butter/cheese sort of thing.
I use about a cereal bowl of frozen mash worth to make these for 2 people.
If you have instant gravy in the cupboard you could do mash with gravy another night & if you have any frozen bits of veg mix those in.
If you have spaghetti, cook it, crack an egg over it once drained & scramble them.
If you have a bit of bacon or ham, dice it up & throw it in - aka student carbonara.
Stuffing is also very filling - 25p for a small box in sainsburys - we do a meat free roast where we have the stuffing as the meat.
Alternatively, you could buy one sausage (about 50p) from the counter & mix it in the stuffing to give it a meat content if that's important to you.
You can also buy single pieces of bacon btw.
Pack of 6 eggs (value ones) will do omelettes for 2.
You just have to think outside the box, but you'll figure it out.
Hope next month goes better for you.