My guys like....PARSLEY of course and dandelions. Other than that they are not very picky, although they do get bored with collard greens. The trick to remember is that as long as the vegetable is DARK Green it is ok.....it's the light - medium greens that do not have as much nutrients and or have too much water in them. So..for example, they can have the outer leaves of a cabbage, which are that real nice dark green, but not the inside leaves. Who would have thought feeding an animal would be this complicated!?!?!?