Ok, this is a hypothetical question for now, but here's a scenario:

You work 50+ hours per week. No stay at home wife or stay at home husband. High pressure job, stuck in a cube all day. You don't have that much time to even go out for lunch, as the office is in an industrial area. There's a microwave and a fridge in the cafeteria half a mile (seemingly) from your cubicle. You're not allowed to eat at your desk. The cafeteria food is awful, so you usually bring your own lunch. You could go out for lunch, but wouldn't have time for a sit-down restaurant on a regular basis. You leave the house at 6:30 a.m. and get home at 6:30 pm.

So far, you've managed to ditch gluten, hfcs, artificial sweeteners, legumes, dairy.

How do you work this? Any and all suggestions welcome