Preheat oven to 200°C. Line an oven tray with baking paper. Put 1 cup plain flour, 2 tablespoons olive oil and ¹⁄³ cup warm water in a food processor and process until a ball forms. Turn out dough onto a lightly floured surface and knead until no longer sticky. Roll out to a 25 x 18cm rectangle and put on prepared tray. Top with a sliced red onion. Drain 2 x 95g cans of Sirena La Vita Lite Tuna In Oil. Scatter tuna over onion and top with a truss of baby vine-ripened tomatoes. Bake for 20-25 minutes or until pastry is golden and crisp.   

Photo by Chris L Jones