nano, if it's important to you, you will MAKE time. Cook up everything one day a week, and get tons of storage containers, and a big cooler. You can do it, if you want to.
Cook up a big pot of rice, pressure cook a roast and a bunch of chicken breasts, steam a bunch of veggies or eat them raw, etc. If you have a microwave at work, throw a tater in your bag, cooks in a few mins.