Pre-heat the oven to 180C fan-forced.
Flatten the chicken fillets - place them between two sheets of baking paper and bash with the smooth side of a meat mallet.
Combine the ricotta and sun-dried tomato pesto and spread it on the rough side of each flattened chicken breast.
Roll them up tightly.
Pour ⅔ of the passata into the bottom of a baking dish.
Place the rolled chicken fillets on top.
Pour over the rest of the passata and then sprinkle with the cheeses, lemon zest and a little salt and pepper.
Cook for 30 minutes or until the chicken is cooked through.
Slice on the diagonal and serve.