Caramelized Onion and Mushroom Tartlets

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.

Prep Time

40

Minutes

Total Time

40

Minutes

Makes

24

appetizers

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
  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.
Makes 24 appetizers
Make the Most of This Recipe With Tips From The Betty Crocker® Kitchens
Kitchen Tips
Substitute finely shredded Gruyère cheese for Asiago cheese.
Get a head start on making these tartlets by caramelizing the onions ahead of time.

Nutrition Information:

1 Serving (1 Appetizer)
  • Calories 70
    • (Calories from Fat 40),
  • Total Fat 4 1/2g
    • (Saturated Fat 1g,
    • Trans Fat 1/2g),
  • Cholesterol 0mg;
  • Sodium 90mg;
  • Total Carbohydrate 6g
    • (Dietary Fiber 0g,
    • Sugars 2g),
  • Protein 1g;
Percent Daily Value*:
    Exchanges:
    • 0 Starch;
    • 0 Fruit;
    • 1/2 Other Carbohydrate;
    • 0 Skim Milk;
    • 0 Low-Fat Milk;
    • 0 Milk;
    • 0 Vegetable;
    • 0 Very Lean Meat;
    • 0 Lean Meat;
    • 0 High-Fat Meat;
    • 1 Fat;
    Carbohydrate Choices:
    • 1/2;
    *Percent Daily Values are based on a 2,000 calorie diet.