Roast the hazelnut leaves in a pan without fat until light brown. Put them on a plate and let them cool down. Clean and wash the endive salad and drain well. Cut the lettuce leaves into strips and place in a large bowl.
Quarter the tomatoes, remove the seeds and cut the flesh from the skin (or peel the whole tomatoes with a peeler). Cut the flesh into small cubes. Place in a bowl together with the hazelnuts.
Add honey, vinegar, olive and hazelnut oil and two tablespoons of water. Season with salt and pepper and mix well. Pour everything over the endive salad and mix in carefully.