An Australian woman accused of triple murder sent her children to the movies before serving up a toxic mushroom lunch that killed her guests, a court heard on Thursday.

Erin Patterson, 50, is accused of murdering the parents and aunt of her estranged husband with a poisonous beef Wellington in July 2023.

She is also charged with the attempted murder of her husband's uncle, who survived the dish after a long stay in hospital.

Patterson has pleaded not guilty to all charges.

At the headline-grabbing trial was on Thursday, a recording was played of a police interview with Patterson's daughter, then nine, following the meal.

"My mum told me that she wanted to have a lunch with my........

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