The reason I say this is ideal for a picnic is that it does not need dressing, and if you do choose to dress it, it travels well – the small amount of lettuce means that it doesn’t go soggy if dressed. So you can prepare it at home (very easily) and just pack it up for transportation.
Two punnets of small tomatoes (I used a miniature roma and a “snacking” tomato)
100g feta, cut into small cubes
6 small cos leaves, shredded
Freshly cracked black pepper
Dressing of your choice – I prefer Nan’s salad dressing
Mix everything in a bowl. Done.