The Hoops finished off their Clydesdale Bank Premier League campaign with a convincing 4-0 win over Dundee United at Tannadice.
Kris Commons gave the champions the lead with a 30-yard free-kick in the 11th minute before Georgios Samaras helped himself to a double, the first with a deflected drive in the 17th minute and a header 10 minutes later.
With five minutes remaining substitute Anthony Stokes, on for Commons, completed the rout.
The Parkhead boss, who guided his side to the last 16 of the Champions League this season, said: “I was delighted with the performance. I got everything I wanted today.
“The cup final next week is all on the day but we will prepare as best we can, we will prepare like it was a Champions League game.
“We will train intensely, even though it is the last game of the season there will be no switching off.
“We will do a lot of analysis with the players and obviously we will have a look at some of our recent games at Hampden to see how we can improve on things.”
Lennon will assess Charlie Mulgrew (knee), James Forrest (stiffness) and Adam Matthews (knee) next week and will know on Thursday if they are fit enough to play.
Meanwhile, St Johnstone claimed third spot in the Clydesdale Bank Premier League – and the final Europa League berth – after ending the season with a 2-0 victory at home to Motherwell.
A 1-0 defeat for nearest rivals Inverness in the Highland derby at Ross County meant the three points were enough for Saints to beat Terry Butcher’s men to European football.
Goals from Liam Craig and Nigel Hasselbaink secured the win against a Motherwell side who were already confirmed as SPL runners-up.
Andre Hainault’s well-executed volley two minutes before the break sunk Inverness as they slipped to their first derby loss of the season.
It was a cruel end to their most successful season, which also saw them lose a Scottish Communities League Cup semi-final penalty shootout to Hearts.