There is a legend in our family concerning my now brother-in-law, when he was but new on the scene. Staying at the farm, he and my sister were getting under our mother's feet, and were booted out of the house to go for a walk. A long walk. Preferably lasting an entire day. Mother kindly provided them with a packed lunch in which she had included "cheese and tomato rolls", and off they went.
An enjoyable morning's hike, and it was time for lunch. Brother-in-Law unpacked the filled rolls, and took a bite. Then, puzzled, he opened the roll and inspected its contents. "But where," he asked in confusion, "is the cheese?"
If you don't believe me, just try it. Purchase for yourself a white morning roll, preferably of the Scottish variety ('safties', as they are also called up here). Split it, and spread both halves thinly with butter or margarine. (Americans would use mayonnaise: this is an Abomination.) Slice a tomato and arrange the slices in a thick layer on the bottom half. Crucially, you then need to sprinkle on some freshly ground black pepper and a very small pinch of salt. Add the top half, and there you have it - the perfect and thoroughly frugal tomato roll!
I am not dignifying this suggestion with a recipe page of its own. It is merely a plea for simpler sandwiches all round. If the flavour of the filling is good in itself, then it should be enjoyed in itself. Mother, of course, was right. :)
Total Daily Expendure: £0.55