3rd Shift Schedule!!!

I work 11 to 7:30 and have been on nights since November. Here's what I do. I eat breakfast when I get up, usually sometime after 7pm. I have a snack shortly after I get to work, which is really a quick trip into the breakroom to grab coffee and a granola bar or something similar. I try to have lunch around 3AM, which I pack myself and bring with. I get home around 8AM and make myself dinner.
Of course some nights I don't get a lunch break if we get a bad trauma in. That's why I keep a stock of small snacks with me all the time. Nuts, cheese, beef jerky, snack bars etc. That way I can grab something quick whenever I have an opportunity.
Do you keep your sleep schedule the same on your days off? I do and that helps me keep my food scheduling.
I know the struggle you're going through though. I successfully lost 30 pounds in the few months before I switched to nights and then gained most of it back. Wasn't until May of this year that I finally got back on track and figured out this eating on third shift thing. Down 39 pounds since then. You'll figure out a routine that works best for you. Good luck!