What a brilliant idea for a thread. I am strealing sooo many of these ideas!
My suggestions are a bit crap in comparison to yours, but I'd feel bad if I didn't add some!
Mum's soup
1/4 packet of dried soup mix (lentils, beans etc)
Leek, sliced
Potato, chopped
Carrots, grated
Any other veg you fancy throwing in
Veg/chicken stock
Soak soup mix overnight, rinse and put in pan with all the other ingredients. Bring to the boil. Cover. Leave for 30 mins or so. Eat. Yummmmy!
Probably costs about £2.
Tuna pasta
Our current 'staple' - ridiculously boring, but very tasty
1 tin tuna
1 tin sweetcorn
Mayonaise
Pasta
Mix together, eat hot for tea and cold the next day for lunch. Yum. Also costs about £2.
Leek and potato dauphinase
Two large leeks
4-6 large potatoes
Veg stock
Handful grated cheese
Cream if you have any
Chop the leeks into three/four large chunks (big enough to stay together while boiling) and the potatoes into quarters. Boil in the veg stock for around five minutes. Drain, but keep the liquid they were cooked in. Slice potatoes and layer in a caserole dish with chunks of mushed up leek (I think you're supposed to slice them too, but after the par boiling they are soft so you don't really need to) Pour over about half of the reserved stock and a little cream if you're using it. Sprinkle grated cheese over the top. Cook in a medium temp oven for around 30 mins.
Can be eaten on its own or as a great side dish for meat or fish.