The easiest appetizer you will every make. Boursin stuffed mushrooms. Tangy, creamy, garlicky cheese melted on a mushroom. Yummy! Boursin Stuffed Mushrooms Author: Julie Boyle Prep time: 10 mins Cook time: 20 mins Total time: 30 mins Ingredients 15 Stuffing Mushrooms Boursin Cheese spread Breadcrumbs Instructions Heat the oven to 350. Spray a cookie sheet