However, these days I have gone low carb, and as a result I now make dishes for lunch at work instead of sandwiches, and in those I can do what I want.
My lunch was half a pound of ground beef, mixed up with large amounts of cucruma, curry, mix of herbs, ground chili pepper. Baked it through and then added mushrooms. I then stewed celery, paprika and an onion in butter with a spoonful of sambal (ground chili paste) and added it to the meat. Then added a small tin of pulped tomato concentrate.