The former O.C. actress led the glamour at the charity fundraiser on Wednesday evening (14 October), wearing a Jonathan Saunders dress.
We love the red heels as well.
Rachel joined celebrities including Modern Family's Sarah Hyland at the event in aid of No Kid Hungry, which aims to end child hunger in America.
According to the organisation, nearly one in five children in America live in homes where it's a struggle to put food on the table. No Kid Hungry works with parents to provide cooking classes and advice on making food budgets stretch, and works with schools to provide breakfasts. They also ensure kids have access to healthy food during the summer when school is on break.
Rachel - who gave birth to daughter Briar Rose in November - has long been a supporter of No Kid Hungry and penned an essay on the subject last year.
"Now that I'm a mum, I wanted to get involved with an organisation that I can be certain is making a big difference for kids in our country. We know that hunger can have a devastating effect on children. No Kid Hungry has a relentless focus on ending childhood hunger. The incredible progress they've made in places like Arkansas, Maryland—and my hometown, Los Angeles—proves that we can end this crisis."
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