To Make Ahead
Prepare egg mixture and press pastry circles into muffin cups as directed. Cover tightly with plastic wrap and chill 2 to 24 hours. To serve, assemble quiches and bake as directed.
Remove quiches and cool completely. Place in a single layer in a freezer container and freeze up to 1 month. To serve, let quiches stand at room temperature 30 minutes. Preheat oven to 350°F. Transfer quiches to a baking sheet. Bake 15 to 18 minutes or until heated through.