The Serbian, on loan from Newcastle, struggled to play under Rafa Benitez in the first half of the season. And it seems the Spaniard's "tactical" system didn't suit Mitrovic.
"It's a different style we play here," said Mitrovic after the Cottagers win over Derby County.
"The players enjoy the football more than last season with Newcastle, where we knew how we wanted to play, we always played on the results — that's it.
"This season, this team, we always try to score more goals than the opponent. Newcastle was more tactically [set up].
"We didn't play as much attacking football as we play now. Obviously, it worked because Newcastle were promoted last season. I hope we are promoted again with Fulham."