Usually whatever was leftover from supper the night before. I have a variety of glass and plastic containers that fit into my lunch cooler and is strapped to the handlebars. I don't put plastic in a microwave. Sometimes the meal leans to the "gourmet" side of things. Cracks me up when people, after asking what I have, will say something like, "Dang, I just have a ham sandwich." Sometimes a pack a sandwich, but there are usually some good home cooked sides to go along with it. And yes, I do take a 10 min nap after lunch!