Inspired, this lentil and tuna salad, a perfect cold salad, I felt full when I was done with it. In my hunt for lunch that works, this is a solid out-of-the-park option. Less inspired was waiting until 2:30 to eat because I had to teach a class. When I don’t eat I get cranky, and it’s hard to show off the books when I’m cranky. It’s the dijon mustard in the dressing that really kicks it into gear.