Sanchez will be sentenced in the next few days but prosecutors have asked for the former waiter to be jailed for 15 years and five months for homicide and the desecration of a human corpse.
When he was arrested in February 2019, Sanchez told police that he had been eating his mum “bit by bit” with his pet dog, the court heard.
“Yes, myself and my dog have been eating her bit by bit,” he was reported to have told officers.
Police found Mrs Soledad’s remains in Tupperware containers in their fridge and bones in drawers around the family home.
Her head, hands and heart were found on her bed.