The in-laws (who live in North York) sometimes babysit our kids for a night or two, and the mother-in-law's favourite way to return them to us is to meet for breakfast somewhere off the 401 (we live in Halton Hills), usually on a Sunday morning around 10.
Our go-to place is Perkins in the Holiday Inn on Dixon, for lack of any better ideas. The breakfast is generally acceptible, but the lineup is atrocious (for what reason, I cannot determine) and the service very, very slow.
Wondering if there is a better option. A good diner even? Doesn't have to be by the airport, but that's kind of the halfway point.