"It was a good point but it's disappointing not to get all three," Lambert said. "Especially in the first half we played some really good football and I should have put at least one, maybe two away."
Everton then nearly grabbed the opening goal after the break, with Marouane Fellaini twice being denied by Artur Boruc in quick succession.
"After the way we played in the first half I was frustrated," Everton manager David Moyes said. "In the second half we got good opportunities but we couldn't nick a goal."