I was describing my "sandwich of the moment" to Olga, when I realized that the description rhymed. Food poetry was born :)
Pretty simple, but the flavors go really well together. Whole wheat bread, not toasted. Thin slices of onions and cucumber. Sprinkle kosher salt in between the layers. My sandwich was open-faced (with only 1 piece of bread), but you could top it with another slice of bread.