I think I cook from scratch almost all the time, but do I? I assemble things which have been processed elsewhere. Today I made a tomato sauce. However, I used ready made passata and lazy garlic and the olive oil had been pressed from the olives. The onions and mushrooms were chopped by me! I happened to have mushrooms which needed using up but usually I'd have used tinned mushrooms for cheapness.
So do I cook from scratch? I suspect that we are all the same - it's a compromise between cost, convenience and common sense. Where do you make that compromise?
For what it's worth. here's my recipe
225g onions chopped
15g olive oil
35g lazy garlic
1 carton of passata
300g mushrooms, sliced
Heat the oil and add the chopped onions and garlic. Cook gently for about five minutes. Bung it in the slow cooker. Add the passata and mushrooms. Cook on high for an hour then reduce heat and cook for a further three hours
I've costed this at £1.65