Hiya Katie, nice looking red pepper sandwich! good idea with cabbage leaves and mince. I sometimes used lettuce for wrap replacements, that any good? As i did each wrap (filled with whatever, cheese, chicken, beef, etc) I wrapped it in clingfilm (you could use greese proof too i guess) so even though it was messy when I got to eating it, it contained the mess.
Hope you're back on the wagon, was day 1 for me yesterday, onward and downward, hope you have a good day x