Recipes Appetizers and Snacks Pastries Gruyere-Mushroom Puff Pastry Bites 4.0 (2) 2 Reviews 1 Photo These savory pastry bites make an elegant (but easy) party appetizer. You can substitute fresh thyme leaves instead of dried thyme if you prefer. Submitted by fabeveryday Updated on February 21, 2022 Save Rate Print Share Close Add Photo Prep Time: 20 mins Cook Time: 25 mins Additional Time: 3 mins Total Time: 48 mins Servings: 24 Yield: 24 bites Jump to Nutrition Facts Cook Mode (Keep screen awake) Ingredients nonstick cooking spray 1 tablespoon olive oil ½ medium onion, diced 8 ounces baby bella mushrooms, chopped 2 cloves garlic, minced freshly cracked salt and black pepper to taste 1 sheet frozen puff pastry, thawed 2 ounces Gruyere cheese, shredded 1 tablespoon grated Parmesan cheese ¼ teaspoon dried thyme Directions Preheat the oven to 375 degrees F (190 degrees C). Spray cups of two 12-cup mini muffin pans with nonstick cooking spray. Heat olive oil in a skillet over medium heat. Add onion and cook until the edges of the onion begin to brown and caramelize, about 3 minutes. Add mushrooms and garlic, and cook until mushrooms are soft, 3 to 4 minutes. Season with salt and pepper. Transfer vegetables to a paper towel-lined plate with a slotted spoon. Roll out puff pastry sheet into a horizontal rectangle on a large, lightly floured cutting board. Use a pizza slicer to cut pastry into 4 rows horizontally and 6 rows vertically so that you have 24 (2 1/2-inch) squares. Press each dough square into each mini muffin cup and prick with the tines of a fork. Divide mushroom mixture amongst pastry cups. Top with shredded Gruyere and Parmesan cheeses. Sprinkle with thyme. Bake in the preheated oven until the pastry is puffed up and the corners are golden brown, 14 to 16 minutes. Cool in the pans on a wire rack for 3 minutes before transferring the bites to a serving dish. I Made It Print Nutrition Facts (per serving) 75 Calories 5g Fat 5g Carbs 2g Protein Show Full Nutrition Label Hide Full Nutrition Label Nutrition Facts Servings Per Recipe 24 Calories 75 % Daily Value * Total Fat 5g 7% Saturated Fat 2g 8% Cholesterol 3mg 1% Sodium 37mg 2% Total Carbohydrate 5g 2% Dietary Fiber 0g 1% Total Sugars 0g Protein 2g 4% Vitamin C 0mg 0% Calcium 29mg 2% Iron 0mg 2% Potassium 59mg 1% * Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs. ** Nutrient information is not available for all ingredients. Amount is based on available nutrient data. (-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.