Preheat the oven at 400F.
Lightly salt & pepper the Lamb meat and set aside.
In a large bowl, add the potatoes, the tomatoes (leave some tomatoes aside for later), the bay leaves, the rosemary and the onion. Mix well.
Add the hot pepper, salt as desired, the wine and oil and mix well.
Add the lamb and mix well.
Take a large baking pan and begin to place in it the Lamb, the potatoes and all the other ingredients from the bowl. Spread the content evenly in the pan.
Pour all the liquids at the bottom of the bowl into the pan.
Sprinkle some Pecorino cheese over the entire surface and in particular over the potatoes.
Squeeze the remaining tomatoes with your hand over the potatoes on the surface.
Bake for 1 - 1 1/4 hours and until the potatoes have colored.