Clean lamb's lettuce, wash thoroughly and drain. Clean, wash and roughly grate the carrots. Dice cheese, cut ham into strips. Stir salad cream and milk until smooth. Season with salt, pepper, mustard and lemon juice.
Stir in carrot, cheese and ham. Wash the pineapple, dab dry and quarter lengthwise. Remove the flesh from the skin with a sharp knife and cut into thick slices. Place the slices back on the pineapple quarter.
Divide the lamb's lettuce and pineapple boats between four plates. Arrange cheese-ham salad on the lamb's lettuce and serve immediately.