The Bhoys have enjoyed a stellar season - waltzing to the league title and reaching the knockout stages of the Champions League - but Lennon will not be resting on his laurels.
After efforts from Joe Ledley, Charlie Mulgrew, James Forrest and a Frazer Wright own goal ensured a comfortable victory over Steve Lomas' visitors, Lennon said: "It's another memorable day in the history of the club and hopefully there'll be many more years like this to come.
"We've had a great season, the Champions League, the league, and I hope to see you all at the cup final.
"From my own personal point of view, thank you for all you've given me and long may it continue."
Lennon, who gave his medal away to a young girl in the crowd, later acknowledged the absence of Rangers had made life easier for his side this season.
"I know there will be a lot of people out there saying there is no Rangers, it is a one-horse race and in essence there is something to that," he said.
"We are not going to hide away from that but we have a job to do.
"We have a responsibility to keep winning trophies, it is part of the DNA of the club and to do it in a certain way.
"Since the turn of the year the home form has been as good as I've seen in my time here.
"We know we need to tidy up away from home but the league is won now and we can focus on finishing the season with a cup final."