The £30m signing from Roma enjoyed his best moment in a Spurs shirt on Thursday when his skilful wondergoal helped them to a 5-1 Europa League win over Asteras Tripolis.
The Argentine has otherwise struggled to make a significant impression at White Hart Lane since his summer 2013 arrival, but has admitted that his 'memorable' goal could kickstart his Tottenham career.
"Was it the best goal of my life? Yes, I think so. I think so," Lamela told reporters. "I've scored like that before, when I was playing in the junior sides at River Plate. It just happened in a flash.
"I wasn't thinking about doing something like that, I just wanted to score and it was the most effective, comfortable way of making it happen. It's something I'll always remember because it's something different from the other goals I've scored.
"The goal can help me show my best here. It was important for me but also because I needed to score, any type of goal. I'm happy for the goal and the win. I hope to continue in this way but it's just one game for me. I need to think about doing other things well and continuing to improve."
Lamela, who saw his debut season at Spurs marred by a back injury, has three goals 29 games for the club.