Preheat your oven to 180C. Line 2-3 trays with butter paper.
In a bowl combine both the flours, chia seeds, sesame seeds, oregano and salt. Add rosemary or chilly flakes here if you like
In another bowl, combine ¼ cup olive oil and water
Combine both the wet and dry mixes and knead into a dough ball with your hand. Add some extra whole meal flour if your dough is too wet.
Divide into 5 balls. Roll out each ball on a floured surface with a rolling pin until really thin.
Using a sharp knife, cut long strips of 2 inches. They will be of uneven length and that is fine. You can cut any other shape you like.
Place gently on the baking trays. Brush lightly with olive oil, sprinkle with sea salt and parmesan if you like.
Bake in the oven for 15-18 mins until golden and crispy.