The Mexico international continues to find himself on the fringes of the Red Devils' starting XI, with Robin van Persie and Wayne Rooney ahead of him in the attacking pecking order.
Fierce competition for places means Hernandez often has to make do with a place among the substitutes, with his role in David Moyes' plans having become more of an impact player off the bench.
He was, however, offered an opportunity from the start against Liverpool on Wednesday and responded with the winner in a 1-0 Capital One Cup success.
Evans was not the least bit surprised to see Hernandez in the right place to turn home a Rooney corner shortly after the interval, with the 25-year-old among the most natural finishers in English football.
"We see it every day in training," he said.
"You always have to be aware of him. He only takes a yard to get a goal.
"That is the type of lad he is. Against Stoke a couple of years ago he scored a goal with the back of his head.
"He loves scoring goals."
Hernandez's efforts in midweek ensured United bounced back from their derby demolition at the hands of Manchester City, but Evans insists the mood inside the camp never dipped following a 4-1 drubbing at the Etihad Stadium.
"I have been on the training ground where the atmosphere has been worse than it was when we came in the day after the game," he said.
"We had no complaints at the weekend.
"Everyone was honest in their assessment that we didn't apply ourselves the way we should have.
"It is hard for the fans, the players and the manager as well. We just had to move on from it quickly."
Its difficult, he's a fantastic goal poacher, but in the modern game strikers need to do more. There were promising signs against Liverpool that his all-round game is improving though.- Mike_Christie