Awww is that marmite on your picture? he/she is absolutlely gorgeous x)Parsley, corriander and dill along with fresh grass. Green beans, kale, Lettuce, Chard and peppers also go down well.
Marmite has a bit of a thing for chicory too
Odd isn't is, my lot won't touch broccoli at all and they're not overly keen on cabbage. Marmite doesn't ever finish carrots either rolleyes