Cumberland Pie - Pinch Of Nom

Ingredients

• 750 g braising steak (all visible fat removed and cut into big chunks)
• 2 onions (diced)
• 3 medium carrots (peeled and cut into big chunks)
• 2 sticks celery (cut into chunks)
• 1 beef stock cube (made up with 450ml of boiling water)
• 2 Knorr Rich stock pots
• 2 tbsp tomato puree
• 1 handful fresh thyme
• 3 bay leaves
• 2 tbsp Worcestershire sauce
• 900 g potatoes
• 3 tbsp cornflour
• 120 g reduced fat cheddar (grated )
• sea salt
• freshly ground black pepper
• low calorie cooking spray