Baked sausage with mushrooms and onions

1kg of Italian Sausages
4 cups of your favorite fresh mushrooms
1 sliced onion
3 tbsp fresh parsley chopped
Olive oil to coat the pan (can also use truffle oil)
Salt & Pepper

In a big roasting pan, add all the ingredients and mix together very well! Bake in a high temperature oven, about 200C/220C for about 30/40 minutes or until the sausages are all the way cooked.
Optionally you can add gorgonzola cheese after is baked, mix all de ingredients again with the cheese will create a delicious sauce!
Serve wil polenta.