Speckled with oniony nigella seeds, this gluten-free flatbread is great with dips such as hummus and taramasalata or to wrap falafel or kebab. A handy recipe to have in your repertoire.

Place the pitta breads onto baking trays and spread some of the tomato sauce over each. Sprinkle over the ham and grated mozzarella. (At this point, the pizzas can be frozen on baking trays, then ...