Preheat oven to 325 degrees
Preheat large skillet on medium heat.
Wash and pat dry mushrooms. Remove stems and set aside.
Finely chop mushroom stems, shallots, garlic, and parsley.
Add 1 tbsp evoo to your skillet. Toss in shallots and garlic. Cook 3 minutes.
Add sausage to skillet and cook for 5 minutes.
Add chopped mushroom stems and cook another 5 minutes or until sausage is cooked completely.
Lightly coat your pan with olive oil. Then place mushrooms open side up. Lightly coat with olive oil and sprinkle with salt.
Fill each mushroom with one tablespoon-ish amount of sausage mixture. Place in the oven for 25 ish minutes. Until mushrooms are soft and sausage has lightly browned on top.