OK, I'll be the one to say it.
I don't think basing a weight loss plan on solely ready meals and prefaced sandwiches is a great idea. They're unhealthy for lots of different reasons - fine now and then, but not as your sole dietary intake. And lots of skipped lunches, or sometimes having a chocolate bar for lunch. Yikes.
Really sorry OP, I'm honestly not trying to piss on your parade. It's still an incredible achievement to lose all of that weight and to have the discipline to stick to it, so genuinely - congratulations. I just hope that others don't see this as some kind of aspirational idea because it's really unhealthy.