Ham or Corned Beef, either plain or with pickle or mustard.
Chicken likewise plain or with pickle (but not mustard!)
Eggs also plain, or with ham.
Cheese and pickle.
Cheese and apple.
Chicken and stuffing. Yum.
Sometimes coleslaw with meat.
Hmm, that doesn't seem like many choices, I need to think of some new ones.
I always make mine the morning before, it doesn't take more than a few minutes, even with the cat optimistically making his presence known (loudly!)