Even if we knew the brand, I don't think we could make them taste as good as at Casey's. I think the "secret" is the big dose of Main Street magic thrown in! What beats a Casey's dog, a cold coke, and a seat on Main Street for a parade??? NOTHING!!
It's a late post and I don't know if anyone will see this but when we were there in September we asked and I'm not positive on the name but I do remember it started with an "M" and it wasn't nathans.
I just had to say... normally hotdogs tend to "gross me out" but, on our first trip/first day at MK we were famished, and ate there. I was hooked! Yummy! We ate twice there (during our three days at MK)!