First there was the "you can't be serious" Shopsin's mac & cheese pancakes combination. And it turned out to be an incredibly great one. Now you can get a mac & cheese slice of pizza at Hell's Kitchen Pizza. It sounds promising, especially because one of my favorite pizzas is the baked ziti slice at Calabria's Pizza in my hometown of Livingston, NJ. Pasta and pizza, perfect together!
But here's a combination might be more likely to generate a gag reflex: kimchi doughnuts from Dunkin Donuts in Korea.