I get that summer is full of barbecues and late, lingering dinners thanks to the long, light evenings. I get that we no longer have that luxury, thanks to fall's cooler temperatures and earlier nighttimes. I get that burgers are typically associated with summer barbecues, and not with fall suppers. BUT burgers are also typically associated with meat. So I figure, if you're breaking one stereotype, why not break them all? Welcome the perfect fall burger, crammed full with sweet potatoes and black beans.