London: Romelu Lukaku scored the winning goal on his debut for Everton as the Toffees twice came from behind to beat West Ham 3-2 in the Premier League on Saturday.
The on-loan striker headed in a cross from Kevin Mirallas at Upton Park in the 85th minute.
Leighton Baines scored Everton's other goals with two clinical free kicks.
West Ham scored in the 31st through Ravel Morrison before Baines equalized in the 62nd.
Mark Noble converted a penalty in the 76th to put the hosts ahead again after Kevin Nolan was fouled by James McCarthy.
Nolan was dismissed in the 81st and Baines made it 2-2 from another free kick in the 83rd.
Everton has nine points from five games and is the only undefeated team in the league.
