Lingard replaced goalscorer Ronaldo on the 71st minute as Ole Gunnar Solskjaer looked for a winning goal.
“That is the question now. Is Cristiano Ronaldo going to be enough to make Manchester United champions this season?”
Fred added a fifth as Pogba provided his fourth assist of an afternoon when Solskjaer’s name echoed around a buzzing Old Trafford.
Red Devils are certainly regarded as the favourites to go all the way in this season’s Europa League.
The Spanish surprise package dumped Molde out of the tournament to advance to the last eight.