Wash and peel the mushrooms. Hollow out the centre of each mushroom slightly. Transfer to a bowl, add oil, salt and pepper and mix well.
Wash the tomatoes and cut them into small cubes.
Put the mushrooms on a baking tray covered with baking paper.
Top each mushroom with tomatoes and sprinkle with grated cheese.
Place in the oven and bake for about 25 minutes at 180°C.
Serve sprinkled with fresh dill.