Fringe defender Michael Dawson got a rare run-out for the north London side and repaid his manager’s faith by scoring the opening goal for the visitors.
However, Toche equalised for the eastern Europeans with 13 minutes remaining, with spoils being shared.
Andre Villas-Boas has praised his players for their efforts, and feels that a draw in Greece is not a bad result.
“I don’t think we were complacent,” he told reporters after the game, published in Sky Sports.
“We have to give credit to Panathinaikos, they pressed much more and started to gain belief from that and that led to the goal.
“I think the whole team felt a bit disappointed because the first half was so positive and we were in control of situation.
“We were a bit sloppy in the second half. I understand the disappointment at not putting the game to bed, but in the end we congratulated the players because if it had been other way round, the whole perspective would have been different.
“Panathinaikos came at us very strong in the second half, they made a change with Ibrahim Sissoko. He improved the quality of their game and could not stay in control of game so much in second half.
“In the end it leaves us with two points. Maribor have three and Lazio have four so everything is open as we go into the double-headers.
“It’s only after the fourth game that you tend to know who will go through or whether there is any competition for that second place.
“In a group like this, normally 10 or 11 points to qualify,” he concluded.
By Gareth McKnight