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Caramelized Onion Bacon Cheese Tarts

Caramelized Onion Bacon Cheese Tart

Caramelized Onion Bacon Cheese Tart; sweet onions, salty bacon, mushrooms, herbs, with Fontina and Parmesan cheese atop puffed pastry adds a touch of gourmet to your holiday party!

Course Appetizer
Cuisine American
Prep Time 10 minutes
Cook Time 50 minutes
Total Time 1 hour
Author Quinn Caudill


  • 6 slices  bacon diced
  • 3 yellow onions sliced thin
  • pinch  of salt and pepper
  • 2 oz. sliced mushrooms
  • 2 Tbsp. fresh flat leaf parsley  chopped
  • tsp. fresh thyme  chopped fine
  • 2 sheets puff pastry from the freezer thawed
  • 1 1/2 cups  shredded Stella® Fontina cheese
  • 1/4 cup Stella® Parmesan cheese grated
  • egg
  • tsp. water


  1. Cook the bacon in a medium-sized pan over medium heat until crispy. Remove with a slotted spoon and let drain on a paper towel, reserving bacon grease in the pan.

  2. Place onions into bacon grease, season with salt and pepper, cook on medium heat until soft and caramelized, stirring often. Stir in mushrooms and saute until mushrooms are browned and most of the moisture is evaporated. Set aside.
  3. Preheat oven to 400˚. Lightly flour a piece of parchment and place both sheets of puff pastry overlapping by 3 inches in the center. Roll the pastry sheet into an 18x12-inch rectangle.

  4. Place the parchment and pastry onto the baking sheet.
  5. Brush the edges of the pastry with water. Fold over the edges 1/2 inch on all sides, crimping with a fork to form a rimmed edge  Use a fork and prick the center of the pastry thoroughly.
  6. Whisk egg with the water and brush the edges of the pastry. Spread the caramelized onion/mushroom mixture over pastry and sprinkle with bacon. Top with Stella® cheeses and the herbs.

  7. Bake with 25 minutes until edges are golden brown and cheese is bubbly. Allow tart to cool for 5 minutes before cutting into 3x2 rectangles. Serve warm and enjoy!

Recipe Notes

-First published by Quinn Caudill for DadWhats4Dinner.com ©2018