I used iceberg lettuce for this. Grab 2 oranges – one for the juice. The other – peel and remove the flesh from the segments. Chill. To the orange juice, add salt, ground pepper, sugar and mix well. Assemble just before serving, adding the olives and crumbled feta. Top with walnuts.
Tip: Chill the lettuce leaves in ice cold water for 30-40 min before serving, if they are not already – they’ll be nicely perked and crunchy.