Mushroom Puffs are a quick and easy appetizer that your friends and family will love. One online reviewer says, "Very tasty and easy to make!!". Mushroom Puff Pastry Appetizers, a fast and easy finger food that will be gone in minutes. The perfect Bite Size Appetizer for family dinners or get togethers. Its rich and delicious and filled with the best of everything. From Italian Sausages, to Peas and Mushrooms to a fast and easy Homemade White Sauce. INGREDIENTS Puff Pastry, Mashrooms, Mozzarella Cheese, Onion, Garlic, Olive Oil, Mayonnaise, Salt, Black Pepper, Parmesan Cheese.