Today's fridge emptying mushroom & lentil 'mince' dinner:
1 onion, 1 carrot, 1 red pepper & 1 courgette whizzed in mini food processor to 'grated' texture.
Into big frying pan with a teaspoonful of oil & stirred about a bit, whilst a small punnet of mushrooms went into the mini FP, until they resembled 'mince' then were added to the pan.
After a few minutes, in goes a mug of red lentils, tin of tomatoes & a jar of tomato paste. Tin & jar rinsed into pan with veg stock because I'd just made some, but water & a cube would be fine.
Tea spoon of dried oregano.
Simmer for half an hour, gently.
Normally I'd add garlic, but discovered dd1 had used it all up yesterday making garlic naan, so I added some garlic salt from the back of the cupboard.
I then made a lasagne, as I also had milk to use up, but it's also good with spaghetti/random pasta.
Obviously very unfancy. But also dirt cheap (sub in any yellow sticker veg), reasonably healthy, & cooks in less than an hour with the majority of that being simmering - maybe 10 minutes actual veg prep?
Adapt for chilli (a fresh chilli in with the veg OR powder, plus a tin or two of beans) or 'keema' (curry powder in with the mushrooms, frozen peas for last 10 minutes).
The lentils work with the mushrooms to create both a 'mince' texture & complete protein.
We opt for having a few vegetable/bean/lentil based meals a week, & it does save a lot.
(Again - caveat that this is not much use if cooking facilities or fuel poverty are the main problem.).