Yep, you can buy a picnic meal here. Mix and match from the changing list of sandwiches (bagel with smoked salmon and cream cheese, ciabatta with hummus), hot items (quiche, soup) and salads. Picnics come with two to four items and a drink. Despite the name, you don't have to take away; there's plenty of seating in the sunny room.
Most items can be made gluten free.