Prepare the dough: melt the shredded mozzarella and cream cheese in a microwave oven for 1 minute, checking half way through.
Add the flax meal.
Stir until the dough is well-combined.
Roll the dough out between 2 sheets of parchment paper (I used a silicon mat and silicon rolling pin).
Add the ham and cheese slices.
Fold over like an envelope and seal the dough.
Poke some holes for releasing the steam while baking.
Bake at 200 °C/ 400 °F for 15-20 minutes or until golden brown and firm to the touch.
When done, remove from the oven and let it cool down for a few minutes.
Cut in half and enjoy while still hot ...
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or let it cool down and refrigerate for up to 3 days.