Food at Gatwick

Hey everyone
I'm flying in 5 weeks in upper class and after seeing the menu which I've never tried my girlfriend is a fussy eater so I was wondering if she can purchase any sandwiches in the south terminal to take on board as a snack?? Can't have her starving for 8 hours now haha
I'm flying in 5 weeks in upper class and after seeing the menu which I've never tried my girlfriend is a fussy eater so I was wondering if she can purchase any sandwiches in the south terminal to take on board as a snack?? Can't have her starving for 8 hours now haha