Mayo on turnip greens or collards is the bomb. I like mayo on baked potatoes, mashed potatoes, in mac & cheese, on pinto beans, in broccoli casserole, and I use it in many other recipes. And I will say, Duke's is my fave.
"Said I never had much use for one; never said I didn't know how to use it". -Matthew Quigley in "Quigley Down Under"