The Hammers toiled to victory over the League Two side, with the Croatian manager forced to bring attacking stars Dimitri Payet, Manuel Lanzini and Michail Antonio off the bench to ensure progression to the next round.
The former Besiktas trainer mixed things up with his team selection, giving a host of fringe players the chance to stake their claim for a regular starting berth in the side.
Bilic stated that of all the players on the pitch, Fernandes caught his eye most for an industrious performance in the centre of midfield.
“Arbeloa didn’t play for a long time but he played the full 90 minutes and he is going to bring us experience and quality,” he told the club’s official website.
“Of all the players on the pitch, I am most pleased with Fernandes. He is also a good player. He is young but has the quality and confidence to play forward. He came out with a big plus.”