Welbeck made a handy contribution given he only found the net on two occasions last season.
"It was impressive that Danny got a couple of goals," said Moyes.
"I said to him afterwards that on another night he might have got four or five.
"But you have to keep getting in there to score. If he continues to work as hard as that for the team he will get his rewards.
"He showed a little bit of versatility tonight in everything he did."