Slice off the top third of the bread and scoop out the soft inside until you have a shell approximately 2cm thick.
Brush the inside with mayonnaise - homemade if you have it.
Shred the turkey into bite size pieces and layer the inside of the loaf with all the ingredients, season with salt and pepper. Replace the lid of the loaf when the bread is so dull that you have to push it firmly down. Wrap tightly in cling film and leave for an hour. Serve in slices or segments.