Jesus, there's loads. Cheese, curry, fried chicken, full english breakfast, pretty much anything from a chip shop. In fact, I lived the dream when I was at uni.
If I had to choose one item it would be steak roquefort with frites though, thankfully the only realistic chance I have of eating this is when in France.
I dont really have a sweet tooth, so expect me to die of a heart attach with my teeth intact.