Chestnut Roast - Pinch Of Nom

Ingredients

• 2 bags ready cooked chestnuts (180g bags) (roughly chopped)
• 150 g mushrooms (finely chopped (a food processor is good for this))
• 1 onion (finely chopped)
• 1 large carrot (grated)
• 60 g wholemeal breadcrumbs
• 1 tsp garlic granules
• ½ tsp dried thyme
• 2 tbsp dark soy sauce
• 1 tbsp tomato puree
• 1 tsp white wine vinegar
• 1 egg (beaten)
• salt and freshly ground black pepper
• low calorie cooking spray