When you are out of the house more than 13 hours and get home hungry, firing up the stove is not always an option.
Since I had the leftovers from yesterday for lunch at the office, I did not need a hot meal. It it still Matjes time here in Europe ( Matjes are herring that haven´t reached maturity) they go well with dill and any kind of sour cream. Having that in the fridge, it was an easy choice for dinner. A small lettuce was the finishing touch, get everything mixed and serve a spoon full or two on a leaf is great.
Buttered whole grain toast is the best to go with it. The rest of the cress to top it off.