Naismith, who netted the opener in the 2-0 win, spent four years at the Merseyside club before he moved to Norwich in January but he remains a fan-favourite at the club.
"The reaction sums this club up. Everton is a magnificent club with magnificent people," said the 30-year-old.
"It was weird for myself but the fans have been magnificent to me throughout and I wouldn't have expected anything else.
"I couldn't have wished for a more special way to score."