Preheat oven to 200°C.
Place chicken, cherry tomatoes, feta cheese and baby marrows on top of a double layer sheet of tin foil.
Place the KNORR Chicken Stock Pot on top of the ingredients and drizzle with basil pesto.
Fold the sides of the foil in to close up the parcel and bake in the oven at 200°C for 45 minutes or until the chicken is cooked through.
Remove from the oven and open up the foil parcel being careful of the escaping steam, then serve over mashed potato.