Caramelized Onion and Mushroom Tartlets

Slow-cooked onions, flavored with fresh herbs and topped with Asiago cheese and walnuts, make a perfect filling for these appealing pastry appetizers.

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Servings 24

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( 11 ) Ratings

11 Ratings

5 Stars 21%

4 Stars 21%

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1 Stars 14%

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ingredients 9
Prep Time 40 min
Total Time 40 min

Ingredients

1: can (8 oz) Pillsbury® refrigerated crescent dinner rolls or 1 can (8 oz) Pillsbury® Crescent Recipe Creations® refrigerated seamless dough sheet

1: tablespoon olive oil

1: large sweet onion (about 8 oz), thinly sliced (about 3 cups)

2: teaspoons chopped fresh thyme leaves or 1 teaspoon dried thyme

1: tablespoon packed brown sugar

2: tablespoons white wine or chicken broth

1: cup chopped fresh mushrooms

1/3: cup chopped walnuts

1/3: cup shredded Asiago cheese

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Directions

1 Heat oven to 375°F. Unroll dough on work surface (if using crescent rolls, pinch seams to seal); cut into 24 (2-inch) squares. Press 1 square in bottom and up side of each of 24 ungreased mini muffin cups.
2 In 10-inch skillet, heat oil over medium heat. Add onion and thyme; cook 8 to 10 minutes, stirring frequently. Reduce heat to medium-low; cook 6 to 9 minutes, stirring constantly, until onions are caramelized. Stir in brown sugar and wine; cook 2 to 3 minutes, stirring constantly, until liquid is gone. Stir in mushrooms. Spoon about 1 tablespoon onion-mushroom mixture into each cup. Top with walnuts and cheese.
3 Bake 12 to 15 minutes or until golden brown. Remove tartlets from pan immediately. Serve warm.