Twice Baked Curried Sweet Potatoes

large sweet potatoes

plain greek yogurt

orange juice

maple syrup

curry powder

kosher salt and freshly ground black pepper

"Crumbs Yo!" * see note below (or other seasoned bread crumbs)

freshly grated parmesan cheese

chopped pecans

finely minced fresh rosemary

finely minced fresh chives (for garnish)