I have spent the greater portion of my adult life living frugally, first out of necessity and later as I saved my A$$ off so that I wouldn't have to, later in life. Here is my modest contribution. Pork tenderloin schnitzel sandwiches. I have no price on the tomato, the lettuce was from my garden and the flour and seasoned bread crumbs are what I call "pantry items". I also have enough leftovers to do it all again, except for the rolls.
HC