01 -
Cut chicken into 1.25 cm pieces and cook in a large pan over medium heat until fully cooked. Use a slotted spoon to transfer chicken to an 20x20 cm baking dish, leaving behind cooking liquid.
02 -
Combine heavy cream, Dijon mustard, black pepper, and salt in a small saucepan. Heat over medium heat until it begins to simmer, then remove from heat. Pour sauce evenly over chicken in the baking dish, scraping the saucepan to include all sauce.
03 -
Preheat oven to 190°C. Slice ham into 1.25 cm strips and pat dry. Add ham, peas, and Swiss cheese to the baking dish. Stir gently to combine all ingredients evenly. Sprinkle cheddar cheese evenly on top, followed by Parmesan cheese.
04 -
Bake uncovered at 190°C for approximately 30 minutes or until heated through and the top begins to brown. Allow to cool for 10 minutes before dividing into four portions to serve.