Pasta and caramelised onion -
1 bag value pasta
1 decent sized onion per person
oil
salt, pepper, sugar
Chop the onions and fry gently in a decent amount of oil until soft and clear. Put pasta on to boil. Season onions well and add a spoonful of sugar, mix well and keep cooking until the pasta is done. Drain pasta, mix through onion mixture (you might need to add a little extra oil but probably not.) Serve sprinkled with a little grated cheese if you like. Costs about 25p per person and there might be some left overs for lunch for 1.
Pasta with eggs -
Cook a bag of value pasta acc. pack instructions. Meanwhile fry a a couple of chopped leeks or onions with some garlic. Drain pasta and mix through leeks/onions. beat 4 eggs in a jug and pour into pasta mix. Stir until eggs are set. Costs about 40p per person.
Split pea soup -
bag of split peas
couple of chopped onions/leek
couple of chopped carrots
couple of chopped potatoes
6pints of stock
salt and pepper
Bring to the boil and simmer until peas have broken down and veg is very soft. Serve with bread. You might need more stock because it gets very thick. On the second day you can either add more stock for soup again or fry another onion with some garlic and curry powder, then whack the thick stuff in and heat through for a simple dahl with rice or flatbread. This serves 12 easily and only costs about £2.
Lentil bolognese -
fry a chopped onion with some garlic add a tin of chopped toms. Season well and add some herbs, Add about 1 1/2 cups of lentils and 3 cups of water. Bring to the boil and simmer stirring often, until the liquid is absorbed and the lentils soft. Mix through cooked spaghetti. You might need a little extra water.
Basic frittata
Chop an onion and fry in some oil until soft, add a little garlic and a tin of new potatoes which you have drained and sliced. Fry about until potatoes start to brown. You can add other veg if you have them, red pepper or mushrooms are nice. Pour the veg into a deep baking dish like you would use for lasagne or cottage pie. beat six eggs with a splash of milk or water and season. Pour over the veg and sprinkle the top with a little grated cheese. Bake at 180 for 30-40 minutes until puffed, golden and set. Costs a couple of pounds, leftovers can be eaten cold for lunch.
Could you send the kids with soup and bread for lunch in a flask instead of sandwiches? Because the split pea sop would probably do them most of the week with enough left over for you to have some.
Buy some cheap porridge for breakfast and have toast as well. Toast is a good snack, too.
I second using the coins in the self service tills before using any notes. That way you get your money's worth.