SHOPPING LIST: Chicken, Ham and Leek Pie with a Puff Pastry Lid, Peas and Carrots (4 portions) Meal Plan Occasions 2, Mother's Day main (serves 4, chicken) [ ] 600 g chicken breast, cut into 2 cm pieces [ ] 150 g cooked ham, cut into 1 cm pieces [ ] 2 leeks, trimmed, rinsed and sliced [ ] 1 onion, finely chopped [ ] olive oil (you need 2 tbsp) [ ] 40 g butter [ ] 40 g plain flour [ ] chicken stock cube (you need 1 cube) [ ] 150 ml double cream [ ] 1 tbsp wholegrain mustard [ ] dried thyme (you need 1 tsp) [ ] 1 sheet ready-rolled puff pastry (about 320 g), chilled [ ] 1 egg, beaten, to glaze [ ] 400 g frozen peas [ ] 4 carrots, peeled and sliced [ ] 15 g butter, for the vegetables [ ] black pepper (you need 1 pinch) Cupboard check: olive oil, chicken stock cube, dried thyme, black pepper are probably already at home. Chicken tip: if frozen, defrost it in the fridge overnight, and cook it the next day. Puff pastry: chilled ready-rolled is easiest. Keep it cold until you use it. Make ahead: the filling keeps in the fridge for a day.