Step 1

Preheat oven to 350 degrees F.

Step 2

Arrange phyllo shells on a large parchment-lined baking sheet. Divide apple among the shells.

Step 3

Whisk eggs, mustard, salt, pepper and nutmeg in a large measuring cup. Pour the egg mixture over the apple (do not overfill the shells). Place a Brie square in each shell.

Step 4

Bake until the egg is set, the Brie is melted and the phyllo is starting to brown around the edges, about 15 minutes. Let cool slightly before serving.