Preheat your oven to 375°F (190°C) and line a baking sheet with baking paper.
In a mixing bowl, combine the grated Parmesan cheese, almond flour, Italian seasoning and garlic powder.
In a separate bowl, whisk the eggs until well beaten.
Take a portion of the Parmesan mixture and form it into a square or rectangle on the baking paper, about the size of your sandwich bread. Repeat to make another piece for the top layer of the sandwich.
Place these in the preheated oven and bake for about 8-10 minutes or until they become golden brown and crispy.
Remove from the oven and let them cool for a few minutes. These will be your "bread" for the sandwich.