Jeez, that's some tough stuff brother. I get what you're saying too, it has nothing to do about how you look and what your fitness aspirations are. I'm only saying it healthwise longterm, eating ultra processed meat like deli which often times it contains just 3-5% actual meat and canned food with all these preservatives it's just not the best deal.
If your requirements are below 4,000kcal you can easily cook 2 healthy meals for your first and last and take one tupperware with precooked meal in your work. I'd prefer to starve a little and eat better when i return home than having lower quality meals in my work. I'm a trucker and sometimes i stay fasted for 6-8 hours until i can eat some proper food. I usually take with me 1 meal, but that's just my 2 cents. If it works for you and you enjoying it then by all means keep it up. Cheers!
