Wall pennywort

Umbilicus rupestris. Also called navelwort or penny pies.
My first forage! Had read that it tasted of succulent lettuce. One internet enthusiast suggests an on the move snack of pennywort leaves with a little jack by the hedge wrapped in a couple of new beech leaves...
Anyway I tried a leaf and it was okish - bit bitter. Think I will stick to lettuce.