Step 1 Preheat oven to 200C/180C fan-forced.

Step 2 Cook pasta in a large saucepan of boiling salted water, following packet directions, until tender. Drain well.

Step 3 Meanwhile, heat a non-stick frying pan over medium heat. Add salami and onion. Cook, stirring, for 5 minutes or until onion has softened and salami is golden. Remove from heat.

Step 4 Pour passata over base of an 8-cupcapacity baking dish. Combine salami mixture, ricotta, 2 cups pizza cheese and basil in a bowl. Carefully spoon 2 tablespoons of salami mixture into each pasta shell. Arrange shells, filling-side up, in prepared dish. Sprinkle with remaining cheese.