They're doing well.
The three Conservatives and their entourage were caught on a mobile phone camera by Ben Stewart, the head of media at Greenpeace, who tweeted the image.
They were all staying overnight in the mountain town of Davos, where the world's most influential businessmen and politicians gather for a summit on economics each year.
A pizza with smoked ham, rocket salad and parmesan is £20, or 31 Swiss Francs.
He posted on Twitter: "I watched Cam, Os and BoJo's raucous Davos dinner last night, wondering if GDP figures great or if they didn't care. Guess we know now..."
