Della Callagher, 46, died after eating at the Railway Hotel in Hornchurch, East London in December 2012
Chef Mehmet Kaya and Ann-Marie McSweeney were found guilty of perverting the course of justice and jailed at Snaresbrook Crown Court for 12 and 18 months respectively.
They had fabricated food safety records (including temperature controls) relating to the cooking of turkey meat.
Della Callagher's family said her death was "avoidable"
Mitchells and Butlers (M&B), the chain which owned the pub, was fined £1.5m for placing unsafe food on the market.