Prepare 2 trays with a silicone mat or baking sheets.
In a bowl mix the flour, oats, water, and oil.
Add all the grains you want and mix.
Pour half of the mixture into each tray and flatten with your hands or with a spoon so that the crackers come out thin and crispy.
Gently sprinkle a teaspoon of Atlantic salt and zaatar over each tray.
Bake each tray at 170 degrees for 15 minutes. Take out of the oven, and using a pizza roller, cut into squares or rectangles. put back into the oven for another 40 minutes.
When ready, wait until cools completely. Store in a container with a lid.