Roast the pine nuts in a pan without fat. Cut the mozzarella into slices. Wash the tomatoes, remove the stalk and cut into slices. Mix the balsamic vinegar with a little honey and walnut oil and season to taste.
Lay the tomato and mozzarella slices alternately, season with salt and pepper. Pour the dressing over it, sprinkle the pine nuts over it and finally pour the basil over it.