What leaves are ok from salad bag?

Hi
After a day hopping round the garden Rupert likes to come in for a cuddle on the sofa and some treats. He usually has a bit of carrot and brocolli. But I have run out all veg (bad mummy! :lol: ) But I have got a bag of mixed leaf salad with things like rocket in. Is he allowed this? I remember being told never to give them lettuce, but this is more leafy than crunchy, is it allowed?
Thanks
Ness x

Well rocket is ok, my two always eat it. depends what else is in it. some types of lettuce are ok to give but definately not iceberg

herbs, celery, rocket, watercress

ive seen salad bags with oak leaf in, is this ok? :?