The agency's first brief is to launch Freelers Pavesi, a new range of savoury and sweet snacks. The work will break in Italy later this month, before rolling out across Europe.
Barilla's other pasta, sauce and bakery brands include Mulino Bianco, Pavesi, Wasa and Voiello.
Brian Elliott, StrawberryFrog's co-founder and chief executive, said: "Barilla is a powerhouse in its market sector, and the launch of Freelers Pavesi is a chance for Barilla to engage with a new generation of young consumers."