Can't find the cornflour? Simply add a box of Arnott's Shapes to thicken your sauce and take your chicken casserole to the next level
Step 1 Step 1. Heat butter in a large heavy-based saucepan. Add onion and cook, stirring for 1-2 minutes. Add chicken and mushrooms, cook for 5 minutes.
Step 2 Step 2. Add BBQ Shapes crumbs and stir until combined. Add Campbell’s Real Stock. Bring to the boil. Stir until thickened.
Step 3 Step 3 Place in a pie dish and top with pastry, brush with egg wash (optional), bake for 30 minutes.