re: Gumbo w/ Sweet Potato

It's a very Cajun thing and I think it's more with home cooks. Never seen it on a restaurant menu. I was talking to a woman who was higher up with Rouses (she had to be from the New Orleans area based on her accent) and she never heard about sweet potatoes in gumbo.

I've never tried potato salad in gumbo. It kind of grosses me out, putting mayo and mustard in a gumbo. Or do you make a special kind of potato salad without condiments?