2 Little Gem lettuces
2 Granny Smith apples (approx. 250g/9oz)
3 celery sticks, cut into 5mm/录in slices
150g/5陆oz red seedless grapes, halved
陆 lemon, juice only
3 tbsp mayonnaise
1 tsp French mustard
sea salt and freshly ground black pepper
80驳/2戮辞锄 walnuts
100驳/3陆辞锄 Stilton, crumbled
3 tbsp Greek-style yoghurt