A can of tuna+mayo+small pickle-eaten out of the bowl with a fork for brunch. I get up late in the am and just eat one meal at home, one at work and a good snack before I come home. It's tuna that seems to do the trick for me.
Dang if I could only stand to eat it every day. It gets boring and I quit for a while and stall, only to start losing when I add it back. Sometimes I add lettuce wraps or celery, but it works about the same. It may be a coincidence-but I'll take a loss where I can get it!