Preheat the oven to 350 degrees.
Line a 9 X 12 baking sheet or dish with parchment paper. Using the paper is important and helpful for removing when done.
In a small mixing bowl, whisk together all the ingredients until combined: eggs, cheese, flour, baking powder and parsley, if using.
Pour onto the baking dish and spread into an even layer.
Bake for 15 minutes, or until cooked through and golden.
Remove from the oven, let cool, then cut lines horizontally and vertically to create mini squares.
Place the cubes in a freezer-safe container to store until you are ready to use them, or simply in an airtight container in the fridge.
Use as a garnish in pastina, brodo, or chicken soup.
