YouTuber opens a free restaurant on a London Underground train

It isn't uncommon to see street food stands around London, especially around this time of year. But, what if there was a free restaurant on a London Underground train? I bet that hasn't been done before.

This YouTuber decided it was time to try and unite the antisocial people of the UK's capital city by opening a free 'five star' restaurant on one of the trains. He set up tables along the carriage and offered passengers free pizza.

Not only is free pizza a blessing sent down from the gods, but it is also a great social experiment to see how you can unite strangers on something as mundane as a commuter train.

What food would you have offered?