Many pasta dishes, e.g. puttanesca (one jar anchovies, one tin toms, garlic, oil, packet spaghetti).
Many rice dishes, e.g. risotto.
I have a lot of porridge for breakfast.
whats expensive is convenience meals, e.g. sachets of flavoured porridge rather than a massive bag of porridge, or say ready prepped soup versus home made, or indeed any ready meals.
Meat too, obvs. Fruit and veg are obvs expensive too, but they are imperative for your good health. So I eat them, but I’ve given up other things. Or have the other things in moderation (crisps, chocks, etc. or that’s the idea ;-)
@Dacadactyl the cheese and onion pie sounds nice! Any specific recipe?