IT was a bloody brawl allegedly sparked by a hamburger with bacon.

Now 32 witnesses will be called to give evidence at a hearing about how an incorrect order allegedly led to a violent assault on two police officers at a western Sydney McDonald's in April.

Mouhamad Khaled, 23, his 20-year-old girlfriend Daphne Florence Austin and his father Walid Khaled, 53, have been charged over the brawl at the Bankstown fast food outlet.

In Burwood Local Court yesterday, Magistrate Christopher Longley set a hearing date in February for Austin and Walid Khaled, who have each pleaded not guilty to charges linked to the brawl.

Mr Longley was told the prosecution will call 29 witnesses and the defence will call three people.

Mouhamad Khaled is yet to enter a plea to six charges, including inflicting grievous bodily harm on a police officer, and will be dealt with at a separate hearing.

Police allege the trouble began when the group began abusing counter staff because their hamburger contained bacon.

Police who were on the premises spoke to Walid Khaled about his alleged offensive behaviour. When he allegedly continued to swear, police tried to arrest him.

Police allege they were assaulted by Mouhamad Khaled and Austin, prompting them to use capsicum spray and batons.

As they attempted to restrain Mouhamad Khaled he allegedly grabbed their handcuffs and assaulted them.

He struck probationary Constable Matthew Sutherland on the head before swinging them at Senior Constable Alicia Bridges, hitting her.

Austin is charged with assaulting and hindering police, and Walid Khaled with resisting police, behaving in an offensive manner and offensive language.

Mouhamad Khaled spent four months in custody before being granted bail in the Supreme Court.

Burwood Local Court was told in August that Austin is due to give birth in November.