Been at a desk for 20-years, now at physical labor. Recently figured out that I’m running a serious caloric deficit, and I’m already a skinny fucker. Also, I’m aiming to build a little muscle and a lot of endurance. How do I eat?!

Back when I was working hard, ate tons of fast food. Too expensive and time consuming, don’t want off the clock to go eat (hour round trip including eating). Took a 12-hour shift today and did OK sucking down granola bars, water and kratom, ate my wife’s kickass meal when I got home.

What can I cook or bring to work to power me? What’s simple and cheap and doesn’t require much on-site prep? (We have a microwave, toaster, all that, I just want calories and protein in my face with no fuss). Afraid I’m half-ass cannibalizing myself.