The forward secured a priceless three points for Chelsea at Ajax while earning his manager's praise.
Lampard believes Michy Batshuayi's match-winning moment in Chelsea's 1-0 triumph at Ajax was just reward for the patience he has shown this season.
The Belgium striker hammered home from fellow substitute Christian Pulisic's assist with four minutes remaining at Johan Cruijff Arena to snatch a potentially priceless three points in Champions League Group H.
"The fact Christian Pulisic comes on in the last two games and gets two assists, changes games, I thought his performance was outstanding for 25 minutes or whatever it was," Lampard told BT Sport.
"And Michy, the great thing about the strikers I've got is that, even though Tammy has been scoring for me, the other two stayed patient, worked hard, supported the group and they've got talent.
"So, it was a choice to bring Michy on because of how mobile he can be and he's waited for his moment and he fully deserved his moment there."
"It was our mistake [that led to Ajax's offside goal] and that's why the Champions League is what it is, that's why it's the ultimate because, in a tiny second, if you switch off, it can go against you," Lampard added.
"But we deserved our luck, I think. I'm a big believer in that, in how you prepare what you're doing with the input out there, you deserve that little break.
"We haven't had many VAR breaks this season anyway so I suppose it might have been coming, you make your own luck on that one and the one that hits the post.
"But I thought, for such a creative side that they are, we didn't have Kepa [Arrizabalaga] under many problems and we did have a lot of moments for us in the box where, had we been better, we could have scored more."
Batshuayi was delighted with his strike but was keen for the focus to be on the team effort.
"I think all the team worked hard," he said. "It's good to win, to get three points. I know [I scored the winner] but the important thing is the three points tonight."