I'm eating very cheaply at the moment. Determined to use up what's in fridge/freezer & cupboard before doing another Ocado order.
I batch-cooked 6 portions of vegetarian curry (frozen onions, tinned chickpeas, frozen squash, Patak's curry paste in a jar, tinned tomatoes) approx £1/portion.
Waitrose Essential range tinned tuna - one can mixed with plain yoghurt, cornichons, dash of Tabasco makes two meals when served on crispbread/flatbread. I've got a mish-mash of other things to eat up so I'll be having some strange combinations in the next few days.
All this plus an Abstinence April, of sorts, so eating very cheaply without wine!