Blend cauliflower to fine breadcrumbs in the food processor.Place in a bowl with egg and seasoning and mix. Add a little cheese if you like.Roll out the size of the pocket you want and place on a baking tray with parchment paper. 6-8 inches square.Bake at 350F for 20-30 minutes, until golden and fully cooked. Test that it is solid so it doesn't fall apart.Chop Onion and brown in a skillet with a little heated oil. Add chorizo and cook for a few minutes. Add chopped tomato.Add chorizo to half of your baked pocket and fold over. Sprinkle a little cheese on top and broil to brown. You can also add some cheese and brown before you add the chorizo.