The Dons will face off against Brendan Rodgers’ side at Hampden on December 2 to decide who will lift the first trophy of the season.
The rivals met in the final two years ago and locked horns again in the Scottish Cup final at the end of that campaign.
On those occasions, Rodgers’ side won the Betfred Cup 3-0, with Derek McInnes’ men losing 2-1 when they renewed their rivalry at Hampden in May 2017.
And midfielder McGregor feels the fact his team-mates will be able to draw on those victories at the national stadium will prove to be a distinct advantage when they return there in December.
"We’ve not had an Old Firm final for a good few years, so it would have been incredible to be involved in that," said McGregor.
"It’s Aberdeen again, though, and it’s a tough game. We have a good record against them in finals in recent years.
"It’s great to call on that experience. You always remember those results and it can give you an edge going into the next one.
"They deserve to be in the final and, on their day, they are a match for anyone. But we’ve been there before and we’ve managed to win leagues and cups along the way, so hopefully we can get another one.
"We have to prepare properly to arrive at that game with confidence to make sure we get the job done."