The 25-year-old playmaker has won the World Cup and European Championships with Spain and has now added the Europa League to the Champions League Chelsea won in 2012.
Following the 2-1 victory over Benfica in Amsterdam, Mata hopes to realise his ambition of winning the Premier League in his third season at Stamford Bridge next term, and he said: "I feel very proud of what I have done, but I want to do more. I want to win more trophies, for example the Premier League. It would be very special for me."
He added: "It's the first time for a club to win the Champions League one season and the Europa League the following season. It's very difficult to do it in two consecutive seasons and I think we feel really proud of this team."
Brazil defender or midfielder David Luiz shares Mata's desire for a Premier League title.
"We need to win titles," Luiz said. "This is a big club. Always you have the opportunity to play big games, play important competitions, so next year Chelsea want more European titles, want the Premier League, want everything.
"The team has a lot of quality that's why we won two big trophies in two years.
"The Premier League this season was a little bit bad [but] I think this team has a lot of quality for the Premier League next year."
- Sports & Recreation