I love bread-making, and now can't imagine buying a frozen pizza again. But I've never been able to make a sweet bread/roll, since my girlfriend does not eat butter or margarine. At all.
I've hunted around for cinnamon roll recipes (to give just one example), but they all seem to need butter. Any suggestions? Either for  recipes with zero butter or margarine, or,  a regular recipe with a good substitute for the margarine/butter?