Usually bring a sandwich of some sort And keep it in the office fridge. When I had a smaller backpack I used to put it in a hard plastic container but since moving to a bigger backpack 20 years ago it seems to make it unscathed And just a brown paper bag although I do usually use bagels instead of sandwich bread. Sometimes I'll bring leftovers in hard plastic Tupperware inside a plastic bag in case it leaks. Once a week I'll treat myself to a sandwich or something at a nearby fast food or restaurant place. I used to stock up on ravioli and tuna at my last job but so far I haven't felt the urge to do that at the new job even though I have a microwave and I have plenty of space to store food. What I do now that I'm 62 is keep non sugary healthy snack food like nuts dried fruit and snack throughout the day. For the last 2 years my commute is only 6 miles compared to 9 miles for 28 years. The shorter commute plus my advancing age means my appetite is far less than what it used to be and even when I am hungry I can't seem to eat as much in one sitting. And the need to avoid acid reflux I really don't eat as much as I used to.