You could easily sub olive oil for butter and add just a bit of cheese, or even just sprinkle cheese over the final dish as you serve. (epicurious.com)
I used a blend of flours (by weight)-- wheat, rye and buckwheat and substituted olive oil for the butter for a dairy - free family member. (davidlebovitz.com)
By substituting a bit of extra olive oil for the butter and not adding the cheese on top, you have a tasty vegan meal. (tinandthyme.uk)