So here's how you make the world's saddest sandwich, trust me it's a record holder.
Take two slices of white bread (the more processed the better), don't bother toasting them, too much work. Next, find the most generic, artificial cheese slice you can get – the kind that looks like plastic. Slap that bad boy in between the bread. No condiments, it must be as dry as the Sahara.
Enjoy? Nah, endure.
omg just tried making this. Can confirm it's the most depressing sandwich I've ever had. Wouldn't recommend unless you're into culinary masochism. Why did I do this to myself...