It's Museo Sans. Webfonts are often very easy to suss out if you have access to the page itself, so one suggestion for the future is to provide a link to the source. (In this case: http://www.rubenbrulat.com/)

Museo Sans
As a sidenote and as usual for this kind of case, it would have been better to provide the website url. Most of modern menu are using webfonts and by inspecting code and css, answer would have come quicker.