1) Clean the mushrooms, slice them and brown them in a pan with the garlic, a drizzle of oil, parsley and thyme; remove garlic and parsley, season with salt and pepper.

2) With a pastry rings 10 cm in diameter, made from puff pastry 6 discs and keep them aside.

3) Cut out 6 squares of baking paper and arrange them on a plate; using the pastry cutter, distribute a handful of coarsely chopped hazelnuts inside each one; then, for each tatin, form a layer of mushrooms, then distribute a little sliced ​​toma cheese and parmesan on top.

4) Remove the pastry rings and completely cover the composition with a disc of pastry forming one dome. Prick pasta with a fork.

5) Transfer the plate in the oven at 190 ° for about 15 minutes. Remove from the oven and leave to cool for a few minutes out of the oven.

6) Turn the tatin, gently peel off the paper e serve immediately.