A Square Stack

Your ingredients arrived just beside the bread. I lifted the glass dome off the ceramic plate and set to work. First, I smoothed a flat, square slice of ham directly over the bread base. Next came a neat square slice of yellow cheese, aligning each corner carefully. Then, I folded a ruffly green lettuce leaf until it fit the perimeter, topping it with two round tomato slices that met in the middle. Capping it with the second slice of bread, I pressed gently with both plush hands until the layers settled into a firm, tidy cube. Our sandwich is complete.