[ MORE: Watch full PL match replays ]
Jonny Evans also scored for the Foxes, who maintain their place eight points behind leaders Liverpool.
Jack Grealish scored for Aston Villa, which stays ahead of 18th place on Southampton on goal differential.
Leicester City hosts Liverpool on Boxing Day, a date to circle on the calendar.
Three things we learned
1. Iheanacho emergence a new wrinkle: Nigerian striker Kelechi Iheanacho was always lurking as a possible star during his time at Man City, but couldn’t break through and transferred to the King Power Stadium. Life hadn’t been easy at his new home, but a goal and an assist in consecutive Premier League fixtures can make a difference as Leicester hopes to challenge Liverpool. Resting Jamie Vardy on occasion without a big drop-off would be a potentially monumental development.
2. Vardy’s party a record bash: The 15th and 16th goals of Vardy’s PL run put him on pace for 38. That would be six better than Mohamed Salah‘s 38-game record and four better than the 42-game mark shared by Alan Shearer and Andy Cole. Even when he makes mistakes, he finishes.
3. Hobbled Mings a big worry: Villa star center back Tyrone Mings pulled up with an injury but attempted to fight through it. Full credit to him, as he’s been the easy star of the newly-promoted side’s start to life in the Premier League, but an absence or step back from the block and clearance machine will be a major blow to Dean Smith‘s side.
Man of the Match: It’s between Vardy and Iheanacho — James Maddison was also good — and we’ll choose Vardy because we gave it to Iheanacho at midweek.
Kelechi Iheanacho slipped Vardy through on goal, and the Foxes striker nearly blew his chance despite dribbling the keeper.
Ezri Konsa would’ve liked to challenge Vardy following the unusual mis-touch, but the defender was felled by his own sliding keeper.
[ MORE: Premier League stats ]
The Nigerian got his goal in the 41st, a James Maddison cross deflected goal ward and off his leg for 2-0.
Grealish bounced a shot through traffic and inside the far post after Vardy couldn’t clear a corner kick.
Leicester needed less than four second half minutes to restore its two-goal advantage, the unmarked Evans perfectly placing a back post header across goal off a corner kick.