- Preheat the oven to 180c.
- In a bowl combine the chicken, pesto and white sauce. Season. In another bowl, mix together the ricotta, egg, parsley and parmesan.
- In an ovenproof dish, layer up the pesto chicken mixture, the ricotta mix, two lasagna sheets and a layer of grated mozzarella. Repeat this step then when you get to the top pasta layer just sprinkle a generous helping of mozzarella.
- Cover with foil and bake for 40-50 minutes.