The Moroccan hitman signed from Excelsior Rotterdam netted on his reserve team debut against Leicester City on Monday night.
Mounir, 20, grabbed the second goal in the 2-1 win at Stevenage Borough after David Limbersky opened the scoring with his first reserve goal.
Development coach Clive, who memorably bagged 49 goals for us in the 1986-87 season, is impressed.
"He's hungry to score goals and we saw that last night, he had a number of opportunities, he wasn't fazed when one or two were blocked or the chances didn't go his way and his goal was excellent.
"It was a superb finish and I thought he deserved a goal for his efforts.
"I like the positions he takes up, he always looks like he'll be a threat an he has a sense for goal. I like that."
Clive was delighted with a second-successive victory as his side battle it out for honours in the FA Premier Reserve League South. They are currently third.
Battle was an apt word after a physical battle against Leicester but Clive was pleased with how the lads coped.
"I thought it was a merited victory and it could have been more if we were a little more clinical in the box.
"We got into situations where we were cutting balls back and if we were more ruthless we could have run out comfortable victors."
Clive Allen knows a thing or two about strikers - and likes what he sees in newcomer Mounir El Hamdaoui.